Adds compare with branch command

Adds branches quick pick

src/git/gitEnrichment.ts

@@ -209,4 +209,32 @@ const statusOcticonsMap = {
 };
 export function getGitStatusIcon(status: GitFileStatus, missing: string = '\u00a0\u00a0\u00a0\u00a0'): string {
     return statusOcticonsMap[status] || missing;
+}
+
+export class GitBranch {
+
+    current: boolean;
+    name: string;
+    remote: boolean;
+
+    constructor(branch: string) {
+        branch = branch.trim();
+
+        if (branch.startsWith('* ')) {
+            branch = branch.substring(2);
+            this.current = true;
+        }
+
+        if (branch.startsWith('remotes/')) {
+            branch = branch.substring(8);
+            this.remote = true;
+        }
+
+        const index = branch.indexOf(' ');
+        if (index !== -1) {
+            branch = branch.substring(0, index);
+        }
+
+        this.name = branch;
+    }
 }