Bugfix. Changed parsing of highdim server result

Previously, if the binary server result was larger than 64mb, the
protobuf message reader would exceed a predetermined size. This is now
avoided by manually chopping the binary vector into their component
messages and then reading them as protobuf messages.
Merge branch 'protobufParser' of https://github.com/thehyve/RInterface into protobufParser

Conflicts:
	transmartRClient/R/getHighdimData.R