- no need to have both chameleon-quark.pc.in and chameleon-starpu.pc.in
    - new file is chameleon.pc.in
  - create coreblas.pc.in and cudablas.pc.in
    - chameleon depends on coreblas and cudablas pkg-config files
  - re-write a little bit how libraries lists are converted into pkg-config style

change installation directories for headers, executables and docs. Make it relative to chameleon to avoid a bloody mess in system dirs