Merge branch 'master' of git.astron.nl:desp/hdl

applications/lofar2/doc/prestudy/desp_howtools_erko.txt

libraries/base/common/src/vhdl/common_mem_pkg.vhd

libraries/base/dp/src/vhdl/dp_stream_pkg.vhd

libraries/base/mm/src/vhdl/mm_pipeline.vhd