S.I.M.P.L.E. 1.1.0

Moved the use of all dependencies (flatbuffers, ZeroMQ, cppzmq) to the implementation files, headers are all dependency-free.
Added CPack functionality to automatically generate and upload release artifacts to GitHub.
Minor fixes and improvements.

S.I.M.P.L.E. 1.0.0

Feature/homogeneousTransformMsg (#44)

Added the definition of Transform and TransformStamped messages and their relative tests.