Add vscode-references-view plugin to che-theia (#653)

Referenced issue: eclipse-che/che#14856

Signed-off-by: Victor Rubezhny <[email protected]>

generator/src/templates/theiaPlugins.json

@@ -48,5 +48,6 @@
     "vscode-builtin-xml": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/xml-1.39.1-prel.vsix",
     "vscode-builtin-yaml": "https://github.com/theia-ide/vscode-builtin-extensions/releases/download/v1.39.1-prel/yaml-1.39.1-prel.vsix",
     "vscode-editorconfig": "https://github.com/theia-ide/editorconfig-vscode/releases/download/v0.14.4/EditorConfig-0.14.4.vsix",
-    "vscode-git": "https://github.com/che-incubator/vscode-git/releases/download/vscode-git-1.30.1_0.0.1/vscode-git-1.30.1_0.0.1.vsix"
+    "vscode-git": "https://github.com/che-incubator/vscode-git/releases/download/vscode-git-1.30.1_0.0.1/vscode-git-1.30.1_0.0.1.vsix",
+    "vscode-references-view": "https://github.com/theia-ide/vscode-references-view/releases/download/v0.0.47/references-view-0.0.47.vsix"
 }