2 - SPM/Scatter

See merge request !22

Fix issues with the actual spm in order to make it works in distributed

 This PR fixes minor issues that were not impacting the library in the shared memory case, but that would have a large impact on the distributed case.

 * Add a spmInitDist() function to initialize an spm with a specific communicator (MPI_COMM_WORLD by default)
 * Add a function to compute the glob2loc array when needed.

See merge request !29

Fix warnings and issues raised by coverity

See merge request !20

Upgrade CI scripts and Ctests to prepare the MPI version

See merge request !19

Update cmake

See merge request !17

Hotfix/ijv merge

See merge request !16

Fix Conjuguate Transpose on hermitian matrices

See merge request solverstack/spm!15

Rules precision

Update the rule precision scripts to get the latest one with local dictionaries.

See merge request !14

Modify where we generate header files to enable in-place configuration and compilation in both spm and pastix

Replace MPI_COMPILE_FLAGS by MPI_C_COMPILE_FLAGS

See merge request !13

replace MPI_COMPILE_FLAGS by MPI_C_COMPILE_FLAGS that should be cleaned (without semicolons) after MPI find_package