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

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

this includes changing the runInTerminal.command command line.
the terminal setting mock from the debugger plugin is gone again.

Add modules, threads and register view. Refactor register format code.

Qt creator starts up now, no debugging yet.

double click on the "<...>" line

mostly renamings

Fixes: Introduce a cpp settingspage containing file naming conventions (lower case and suffixes). Reorder VCS settings pages.

Task: 241959, 248085

RevBy: Optics/Naming checked by con
Details: Give IOptionPage an id() to differentiate from trName(). Make showOptionsDialog return a bool (applied) and give it an optional parent. Change Cpp and form class wizards, give them a Configure... button to change those settings.