Extract hover actions and hover contribution point into separate files (microsoft#210219)

* extracting actions into a separate file and contribution into a separate file

* updating the imports of the hover controller

* adding correct contribution point in editor.all.ts file

Author: aiday-mar

src/vs/editor/contrib/colorPicker/browser/colorContributions.ts

@@ -11,7 +11,7 @@ import { Range } from 'vs/editor/common/core/range';
 import { IEditorContribution } from 'vs/editor/common/editorCommon';
 import { ColorDecorationInjectedTextMarker } from 'vs/editor/contrib/colorPicker/browser/colorDetector';
 import { ColorHoverParticipant } from 'vs/editor/contrib/colorPicker/browser/colorHoverParticipant';
-import { HoverController } from 'vs/editor/contrib/hover/browser/hover';
+import { HoverController } from 'vs/editor/contrib/hover/browser/hoverController';
 import { HoverStartMode, HoverStartSource } from 'vs/editor/contrib/hover/browser/hoverOperation';
 import { HoverParticipantRegistry } from 'vs/editor/contrib/hover/browser/hoverTypes';