Spits branch and status nodes into separate files

Removes status node for now

src/views/branchesNode.ts

@@ -0,0 +1,28 @@
+'use strict';
+import { Iterables } from '../system';
+import { ExtensionContext, TreeItem, TreeItemCollapsibleState } from 'vscode';
+import { BranchHistoryNode } from './branchHistoryNode';
+import { ExplorerNode, ResourceType } from './explorerNode';
+import { GitService, GitUri } from '../gitService';
+
+export class BranchesNode extends ExplorerNode {
+
+        readonly resourceType: ResourceType = 'branches';
+
+        constructor(uri: GitUri, context: ExtensionContext, git: GitService) {
+            super(uri, context, git);
+         }
+
+        async getChildren(): Promise<BranchHistoryNode[]> {
+            const branches = await this.git.getBranches(this.uri.repoPath!);
+            if (branches === undefined) return [];
+
+            return [...Iterables.filterMap(branches.sort(_ => _.current ? 0 : 1), b => b.remote ? undefined : new BranchHistoryNode(b, this.uri, this.context, this.git))];
+        }
+
+        getTreeItem(): TreeItem {
+            const item = new TreeItem(`Branches`, TreeItemCollapsibleState.Collapsed);
+            item.contextValue = this.resourceType;
+            return item;
+        }
+    }