Added Composer Support

Author: Pascal Krason

.gitignore

@@ -1,3 +1,5 @@
 /src/.idea
 /Vagrantfile
 /.vagrant
+
+/vendor/

composer.json

@@ -0,0 +1,19 @@
+{
+    "name": "padrio/php-electrum-api",
+    "description": "PHP wrapper for Electrum JSONRPC-API",
+    "type": "library",
+	"keywords": ["electrum", "bitcoin", "payment", "jsonrpc", "api"],
+    "license": "GPL-3.0",
+    "authors": [
+        {
+            "name": "Pascal Krason",
+            "email": "p.krason@padr.io"
+        }
+    ],
+    "require": {},
+	"autoload": {
+		"psr-4": {
+			"Padrio\\Electrum\\": "src"
+		}
+	}
+}