changed tier icons to provide better contrast

cleanup done (size on HD reduced by 80%)

added tier icons to armor, hyperdrive and tiny spherical shield, waiting for feedback

cleanup about 50% done

the sale on Engine Room Mk5 has ended (needed waaay to few hypercoils, fixed)

modified some values (basic shield operation drain, engine blocked fields)

started cleanup

fixed the railgun accelerators (mk5 through 8 all cost duoralloy)

forgot to add the tiny shields to the tier blueprints

added tiny spherical shields (basic radius 4)

cleaned up the blueprint menu entries

added blueprints for the tiers
added blueprint for large crew quarters
added the iron storage (mod.rules entry was missing)