Docs and experiments update

[aletempiac]

This PR includes:

• adding a brief CMake building type guide on docs
• adding docs on write_verilog for mapped networks from emap
• updating the experiment emap
• updating the experiment extract_adders

[codecov-commenter]

Codecov Report

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

Comparison is base (6efb33b) 83.53% compared to head (0789ebb) 83.54%.

:exclamation: Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #633 +/- ## ========================================== + Coverage 83.53% 83.54% +0.01% ========================================== Files 187 187 Lines 29837 29837 ========================================== + Hits 24924 24927 +3 + Misses 4913 4910 -3 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.