prefixing all options with micm_

[K20shores]

To prevent name conflicts with other packages and to make it explicit when using micm from other packages, all micm cmake options are prefixed with MICM_

closes #412

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (9416a2f) 94.66% compared to head (2789b92) 94.66%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #413 +/- ## ======================================= Coverage 94.66% 94.66% ======================================= Files 38 38 Lines 3057 3057 ======================================= Hits 2894 2894 Misses 163 163 ```

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