Add features to insert and manage templates

- Add some panels
- Add buttons to the GitHubIssuePanel

Author: junichi11

src/main/java/com/junichi11/netbeans/modules/github/issues/issue/ui/GitHubIssuePanel.form

@@ -272,8 +272,13 @@
                               <Group type="103" groupAlignment="0" attributes="0">
                                   <Component id="descriptionLabel" min="-2" max="-2" attributes="0"/>
                                   <Component id="titleLabel" alignment="0" min="-2" max="-2" attributes="0"/>
+                                  <Group type="102" alignment="0" attributes="0">
+                                      <Component id="insertTemplateButton" min="-2" max="-2" attributes="0"/>
+                                      <EmptySpace max="-2" attributes="0"/>
+                                      <Component id="manageTemplatesButton" min="-2" max="-2" attributes="0"/>
+                                  </Group>
                               </Group>
-                              <EmptySpace min="-2" pref="37" max="-2" attributes="0"/>
+                              <EmptySpace type="separate" max="-2" attributes="0"/>
                               <Group type="103" groupAlignment="0" attributes="0">
                                   <Component id="descriptionTabbedPanel" max="32767" attributes="0"/>
                                   <Component id="titleTextField" max="32767" attributes="0"/>
@@ -340,7 +345,12 @@
                           </Group>
                           <Group type="102" attributes="0">
                               <Component id="descriptionLabel" min="-2" max="-2" attributes="0"/>
-                              <EmptySpace min="-2" pref="271" max="-2" attributes="0"/>
+                              <EmptySpace max="-2" attributes="0"/>
+                              <Group type="103" groupAlignment="0" attributes="0">
+                                  <Component id="insertTemplateButton" min="-2" max="-2" attributes="0"/>
+                                  <Component id="manageTemplatesButton" min="-2" max="-2" attributes="0"/>
+                              </Group>
+                              <EmptySpace min="-2" pref="237" max="-2" attributes="0"/>
                           </Group>
                           <Component id="descriptionTabbedPanel" min="-2" max="-2" attributes="0"/>
                       </Group>
@@ -492,6 +502,38 @@
                 </Property>
               </Properties>
             </Component>
+            <Component class="javax.swing.JButton" name="insertTemplateButton">
+              <Properties>
+                <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+                  <Image iconType="2" name="/home/junichi11/NetBeansProjects/netbeans-github-issues/src/main/resources/com/junichi11/netbeans/modules/github/issues/resources/template_16.png"/>
+                </Property>
+                <Property name="text" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+                  <ResourceString bundle="com/junichi11/netbeans/modules/github/issues/issue/ui/Bundle.properties" key="GitHubIssuePanel.insertTemplateButton.text" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+                </Property>
+                <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+                  <ResourceString bundle="com/junichi11/netbeans/modules/github/issues/issue/ui/Bundle.properties" key="GitHubIssuePanel.insertTemplateButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+                </Property>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="insertTemplateButtonActionPerformed"/>
+              </Events>
+            </Component>
+            <Component class="javax.swing.JButton" name="manageTemplatesButton">
+              <Properties>
+                <Property name="icon" type="javax.swing.Icon" editor="org.netbeans.modules.form.editors2.IconEditor">
+                  <Image iconType="2" name="/home/junichi11/NetBeansProjects/netbeans-github-issues/src/main/resources/com/junichi11/netbeans/modules/github/issues/resources/template_settings_16.png"/>
+                </Property>
+                <Property name="text" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+                  <ResourceString bundle="com/junichi11/netbeans/modules/github/issues/issue/ui/Bundle.properties" key="GitHubIssuePanel.manageTemplatesButton.text" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+                </Property>
+                <Property name="toolTipText" type="java.lang.String" editor="org.netbeans.modules.i18n.form.FormI18nStringEditor">
+                  <ResourceString bundle="com/junichi11/netbeans/modules/github/issues/issue/ui/Bundle.properties" key="GitHubIssuePanel.manageTemplatesButton.toolTipText" replaceFormat="org.openide.util.NbBundle.getMessage({sourceFileName}.class, &quot;{key}&quot;)"/>
+                </Property>
+              </Properties>
+              <Events>
+                <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="manageTemplatesButtonActionPerformed"/>
+              </Events>
+            </Component>
           </SubComponents>
         </Container>
       </SubComponents>