MUSICA environment modules

[mattldawson]

Set up environment modules on Derecho for linking to the MUSICA library.

Acceptance Criteria

• Users can load an environment module for the MUSICA C library for the default GCC compiler
• Users can load an environment module for the MUSICA Fortran library for the default Intel/GCC/NVidia compilers and the standard CAM-SIMA versions of the Intel/GCC/NVidia compilers

Ideas

• Include any scripts used to generate the environment modules in the etc/derecho/ folder (or something like this)
• Host the environment modules in one of our (developer's) local folders on glade until we find a more permanent home for them