Miscellaneous minor items plus more prep for platform generation
core/application/src/ocpirun_main.cxx: usage message typo/clarification
hdl/devices/gbe.hdl/Makefile: workers must specify all source files, this one didn't
hdl/platforms/isim_pf/mkSimDCP.v: better debug/log message for simulation
test/hdl/scripts/loadBitStreamOnPlatform: better name for platform-specific loading
tools/cdk/ocpigen/ocpigen/include/wip.h: better Port constructor with args
tools/cdk/ocpigen/ocpigen/src/wip_HDL.cxx: fix case when all props are raw
tools/cdk/ocpigen/ocpigen/src/wip_parse.cxx: allow impl-specific data ports
-- only for platform workers....