Create PoC to replace editor implementation in WebIDE with Editor Lite

At the moment, WebIDE's implementation of the Monaco editor is very hard-wired with the concept of the WebIDe in general that technically makes it an editor different from Editor Lite. To unify the editing experience and to provide one editing platform to support and maintain, we should evaluate an opportunity to replace the editor's implementation in WebIDE with Editor Lite. This would leverage the modularity and extensibility of Editor Lite to benefit WebIDE.