Update Parsec directory such that it compiles

@all 
 - Add new codelets required for two sided reduction
 - Update interface
 - Fix compilation issue in codelet_zbuild

See merge request !2

Propose a more generic version to handle starpu versions dependencies, and STARPU_NAME

- Remove the STARPU_XX macro
 - USE STARPU_MAJOR_VERSION, and STARPU_MINOR_REVISION where needed
 - Factorize the test to introduce CHAMELEON_CODELETS_HAVE_NAME, so we can disable it more easily
- Propagate the STARPU_NAME to all insert task functions.

See merge request !1

the key

morse_cmake submodule

add a distrib/ directory where we can add tools for the chameleon distribution: debian packages, spack, ...

- add a first README.md file