baseoptimizer now mostly baserandomoptimizer
more cleanups, routing now in class Routing - separated from field cost
it keeps coming...
field docu, many cleanups - even so for block and other stuff, all old optimizers won't work atm
more cleanups, consistency ...
add some block tests
moved various old stuff into src/obsolete/ to have easier access to the worthful 'knowledge' there :D
aaaaaaaaaaaaiiiiii far to big commit, but major cleanups, tests, new field/block-architecture - far more
removing obsolete stuff