Improving the mapping framework

[aletempiac]

This PR includes:

• Moving emap mapper from the experimental to the algorithm folder
• Adding different matching algorithms to emap: Boolean, structural, and hybrid
• Adding support of large gates to emap
• Improving code stability in emap
• Adding technology libraries and methods for experiments
• Adding Verilog writer for cell_view
• Adding tests
• Adding cell library filters based on gate sizing

[codecov-commenter]

Codecov Report

Attention: 69 lines in your changes are missing coverage. Please review.

Comparison is base (b9a9e95) 83.70% compared to head (8b3791c) 83.68%.

Files	Patch %	Lines
include/mockturtle/algorithms/emap.hpp	89.06%	21 Missing :warning:
include/mockturtle/io/write_verilog.hpp	86.79%	21 Missing :warning:
include/mockturtle/utils/struct_library.hpp	68.42%	12 Missing :warning:
include/mockturtle/utils/super_utils.hpp	27.27%	8 Missing :warning:
include/mockturtle/utils/tech_library.hpp	90.14%	7 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #629 +/- ## ========================================== - Coverage 83.70% 83.68% -0.03% ========================================== Files 186 186 Lines 29213 29617 +404 ========================================== + Hits 24454 24784 +330 - Misses 4759 4833 +74 ```

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