Add counters for tracking clone view

Add the following counters for tracking the clone view being opened
with different selected tabs:

NumberOfCloneViewGitHubTab
NumberOfCloneViewEnterpriseTab
NumberOfCloneViewUrlTab

Author: jcansdale

src/GitHub.App/ViewModels/Dialog/Clone/RepositoryCloneViewModel.cs

@@ -24,6 +24,7 @@ public class RepositoryCloneViewModel : ViewModelBase, IRepositoryCloneViewModel
         readonly IConnectionManager connectionManager;
         readonly IRepositoryCloneService service;
         readonly IUsageService usageService;
+        readonly IUsageTracker usageTracker;
         readonly IReadOnlyList<IRepositoryCloneTabViewModel> tabs;
         string path;
         IRepositoryModel previousRepository;
@@ -36,6 +37,7 @@ public RepositoryCloneViewModel(
             IConnectionManager connectionManager,
             IRepositoryCloneService service,
             IUsageService usageService,
+            IUsageTracker usageTracker,
             IRepositorySelectViewModel gitHubTab,
             IRepositorySelectViewModel enterpriseTab,
             IRepositoryUrlViewModel urlTab)
@@ -44,6 +46,7 @@ public RepositoryCloneViewModel(
             this.connectionManager = connectionManager;
             this.service = service;
             this.usageService = usageService;
+            this.usageTracker = usageTracker;
 
             GitHubTab = gitHubTab;
             EnterpriseTab = enterpriseTab;
@@ -128,6 +131,19 @@ public async Task InitializeAsync(IConnection connection)
             {
                 SelectedTabIndex = 2;
             }
+
+            switch (SelectedTabIndex)
+            {
+                case 0:
+                    usageTracker.IncrementCounter(model => model.NumberOfCloneViewGitHubTab).Forget();
+                    break;
+                case 1:
+                    usageTracker.IncrementCounter(model => model.NumberOfCloneViewEnterpriseTab).Forget();
+                    break;
+                case 2:
+                    usageTracker.IncrementCounter(model => model.NumberOfCloneViewUrlTab).Forget();
+                    break;
+            }
         }
 
         // Put 50% of users in group A

src/GitHub.Exports/Models/UsageModel.cs

@@ -86,6 +86,9 @@ public class MeasuresModel
             public int ExecuteToggleInlineCommentMarginCommand { get; set; }
             public int NumberOfPullRequestFileMarginToggleInlineCommentMargin { get; set; }
             public int NumberOfPullRequestFileMarginViewChanges { get; set; }
+            public int NumberOfCloneViewGitHubTab { get; set; }
+            public int NumberOfCloneViewEnterpriseTab { get; set; }
+            public int NumberOfCloneViewUrlTab { get; set; }
         }
     }
 }