Work in progress new BGEO in Houdini 11+ binary format

You can run jsontest which will dump a testdump.bgeo in old format
in the current directory i.e. if you have a houdini11+ binary json
with points called foo.bgeo you should be able to do

jsontest foo.bgeo

and you will get

testdump.bgeo  in your curr dir
Merge remote-tracking branch 'wdas-partio/aselle' into redpawfx

Conflicts:
	src/tests/CMakeLists.txt

adds starter to reader for new houdini bgeo format