add a new advanced CPU module

renders lscpu, providing hugely more advanced info than we previously had

this also serves as a jumping off point for turning the vulkan kcm into generic tech to build CLI-based kcms. unfortunately due to the nature c++kcms wire up with the kpackages to supply the qml this does entail a fair amount of boilerplate. I'm not sure there is a good way to get rid of this though.

the command runner class is now in a static lib that is pulled into all modules and almost the entire KCM qml is shared as well. this leaves only the metadata and some boilerplate code behind for each individual kcm.

commandoutputcontext no longer implements qmlparserstatus because it no longer gets constructed from qml making it always complete by default

this sits on top of !44 (merged) causing some extra noise