Merge branch 'add-cpp-extension'

Author: jbicker

Diff for: arduino-ide-extension/package.json

@@ -21,6 +21,7 @@
     "@theia/navigator": "next",
     "@theia/terminal": "next",
     "@theia/search-in-workspace": "next",
+    "@theia/cpp": "next",
     "@types/ps-tree": "^1.1.0",
     "@types/which": "^1.3.1",
     "@types/react-select": "^3.0.0",

Diff for: browser-app/package.json

@@ -16,6 +16,7 @@
     "@theia/process": "next",
     "@theia/terminal": "next",
     "@theia/workspace": "next",
+    "@theia/cpp": "next",
     "@theia/textmate-grammars": "next",
     "arduino-ide-extension": "0.0.1"
   },

Diff for: electron-app/package.json

@@ -17,6 +17,7 @@
         "@theia/process": "next",
         "@theia/terminal": "next",
         "@theia/workspace": "next",
+        "@theia/cpp": "next",
         "@theia/textmate-grammars": "next",
         "arduino-ide-extension": "0.0.1"
     },