Rename protobuf to just "converters"
It will allow to abstract details of data parse/serialization
on source code level
Introduce converters for Armadillo types
Reorganize project structure - converters are part of the library
The library decides by itself which data converters to use in
the IPC TBB nodes
Update README
Merge branch 'develop' of /home/git/repositories/common-components/ipc-tbb-nodes
make IPCPullNode a custom TBB node
IPCPullNode starting from this moment:
+ doesn't internally on any TBB nodes
+ can be only a predecessor for IPC TBB nodes

The commit also includes some warning fixes
IPCPushNode doesn't depend on a TBB node anymore
Update description for the node
Merge branch 'simplify' of /home/git/repositories/common-components/ipc-tbb-nodes
add test and coverity targets
Merge branch 'coverity-test-targets' of /home/git/repositories/common-components/ipc-tbb-nodes