this ports most of libplasma away from sycoca, using instead
a combination of KPluginLoader and KPackage::PackageLoader instead
(so eventually using their own little caches instead of the
global sycoca cache)
a kservicetypetrader call is left in the loading of
containmentactions since is the only way to make an older
workspace still work, but is only a fallback, so containmentactions
in plasma-workspace can be ported eventually as well
Change-Id: Ie9579c3e01284f6d97043e22d01bbe63d3c3f45a
REVIEW:123626
since Plasma_INCLUDE_DIR doesn't seem to be used anywhere and fails on CI
experiment with removing it, to see if all packages depending from plasma
build
Change-Id: I1b8f99b0d7e9de2f33674646e273f141646eaeb2
Plasma::Package internally uses KPackage, being a pure wrapper.
old client code and old packagestructures still work using the wrapper.
old workspace code that is not directly using kpackage continues to work correctly
Change-Id: I05f95e8d05e3b67759973c4009e3753c61b1dcce
