Improve naming and improve api usage

[kaisalmen]

• Simplified WrapperConfig and created a real type for it:
  • Removed useVscodeConfig and replaced monacoVscodeApiConfig and monacoEditorConfig with unified type editorAppConfig
  • Configuration can be completely empty, then editorAppConfig will default to EditorAppClassic
• Internal class renaming:
  • Renamed EditorClassicConfig to EditorAppConfigClassic and EditorClassic to EditorAppClassic
  • Renamed EditorVscodeApiConfig to EditorAppConfigVscodeApi and EditorVscodeApi to EditorAppVscodeApi
  • Base class ´MonacoEditorBasewas renamed toEditorAppBase`
• Languageclient related code moved to its own class
• Removed the need for EditorConfig completely
  • editorAppConfig config now contains base parameters for both apps
  • Ensured configuration not belonging to one or the other app is applied in the wrong context

[kaisalmen]

@montymxb doc/comments and eventually slight naming adjustments will come with next update. API tuning is complete.

[kaisalmen]

@montymxb Let's go. I implemented your feedback and in addition moved everything languageclient related into its own class.