Introducing KeymapGroup.Builder. Moving VcsKeymapExtension logic to t…

…his builder. Using this builder in DebuggerKeymapExtension to fix problem in Settings > Keymap (#884)

* Refactoring KeymapExtensions.

* Introducing KeymapGroup.Builder. Moving VcsKeymapExtension logic to this builder. Using this builder in DebuggerKeymapExtension to fix problem in Settings > Keymap.

* Refining KeymapGroup.Builder.

* Using "XDebugger.Actions" group in DebuggerKeymapExtension instead of deprecated "DebuggerActions".

* Marking "DebuggerActions" group as deprecated/for removal.

Refactoring PsiFile and its descendants (#883)

* Refactoring PsiFile and its descendants.

* Returning @nullable to getName() of elements not related to file-system. Returning TextRange.EMPTY_RANGE from getTextRange() which previously returned null.

new run popups - first steps

Fixing typos (part 3). (#882)

Fixing typos (part 3). (#882)

Fixing typos (part 2) (#881)

* Fixing typos (part 2).

* Reverting "classloader".

Miscellaneous (#879)

* Sorting module-info.java in desktop-awt-ide-impl.

* Refactoring AnnotationHolder.

fix problem with always visible generate actions

some parts of debugger now works via localize

some parts of debugger now works via localize