GitLab

Modify engine creation funcs to populate a list of option pages
to be able to handle engine enabling independently of the
actual engine creation.

Conflicts:
	src/plugins/debugger/debuggeractions.cpp

Reviewed-by: hjk

Task-number: 247123

Task-number: 250574

Review-By: Alessandro

Reviewed-by: Thorbjorn Lindeijer

Reviewed-by: hjk <qtc-committer@nokia.com>

Pointed out by Mathias Gumz.

Task: 250759

Introduce API to debug engines and debugger manager to do this.
Reviewed-by: hjk <qtc-commiter@nokia.com>

Add function to automagically resolve function symbol names
that are missing the module name (module!foo). Kill some
trailing whitespace. Add a hack to transform qMain->main for VS.