Fix #42 - HQR header installation

Fix issue #42 (closed)

• Update the HQR module to fix installation of the headers
• Fix multiple warnings of undeclared functions, and unused variables

Fix issue #28

• runtimes header files are installed in CMAKE_INSTALL_PREFIX/include/runtimes/xxx where xxx is replace by the runtime.

Fix issue #32 (closed)

• Libraries dependencies have been cleaned up to keep only the direct dependencies for each one of them.

Update HQR and cmake_morse submodules.

Codelets submission functions are now declared in chameleon/morse_tasks_[scdz].h