Move most code to NCPCore, removes NCPCompat.

Factories are now on NCPPlugin level, thus all the core stuff can be in
one module, giving better source code browsing.

Updates has been moved into an updates package, because there is to be
expected more content, and to make utilities less fat.

To indicate the direction, the basic infra-structure has been added to
allow adding components to the DefaultComponentFactory. Further
processQueuedSubComponents is now called after each components adding in
order to allow more flexible registry features.
Put a pom for building into the NoCheatPlus module until knowing better.