ENH: Setting up cmake configuration and import.

Importing the M code and globals into the vista instance.
BUG: No TEST_VISTA_SETUP for global import.

Removed the use of the TEST_VISTA_SETUP flag, from the logic controlling the
process of importing globals.
ENH: Removed assumption of gtm alias.

Instead of expecting a gtm alias to exist in the users environment,
here we contruct the explicit command:

                      $gtm_dist/mumps  -dir

To be more self-contained.
ENH: In rules separating install, config, build.

Separated in the rules file, the sections for installation of the
initial database, the configuration with CMake, and the build process
calling ExperimentalStart, ExperimentalConfigure, ExperimentalBuild.