removed awkward node removal template.
System class hierarchy defined.
Removed redundant header files. Moved nodes next to system classes. Moved pseudo components for drawing plane and score class next to the corresponding systems.
Slight ogarning of details.
added scoring system
Event based scoring, trivial hud, mergrd the game logic back into the new engine state
Added sparks.
Unified the system logic dispatch conventions.
Implemented unified entity condtructors.
Merge branch 'more-order' of https://github.com/k-stachowiak/space-shooter into exoteric-efwk
Merge branch 'exoteric-efwk' of https://github.com/k-stachowiak/space-shooter into exoteric-efwk

Conflicts:
	src/efwk2/sys/pain.h
Branch merge