Enhancements to balancing, LUT mapping, and rewriting

[aletempiac]

This PR includes:

• Enhancements in LUT mapping: new area optimization round providing better quality, changed cut prioritization cost functions, dumping directly the k-LUT network with integrated inverter sweeping, support LUT mapping based on SOP or ESOP balancing
• Enhanced ESOP and ESOP balancing based on LUT-mapping: provides better delay and area results compared to previous implementation
• Enhanced ESOP and SOP generation and balancing
• Fix in AIG balancing due to structural hashing conflicts
• Fix in rewrite for depth preserving rewriting
• Increasing the support for sequential circuits incut_enumeration, lut_map, and depth_view
• Adding the methods substitute_node_no_restrash to aig_network, xag_network, mig_network, xmg_network, and fanout_view
• Adding the method replace_in_node_no_restrash to aig_network, xag_network, mig_network, and xmg_network

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 87.14810% with 105 lines in your changes missing coverage. Please review.

Project coverage is 84.28%. Comparing base (fac58aa) to head (8a6276b).
Report is 30 commits behind head on master.

Files	Patch %	Lines
include/mockturtle/algorithms/lut_mapper.hpp	86.85%	61 Missing ⚠️
include/mockturtle/views/depth_view.hpp	10.00%	9 Missing ⚠️
include/mockturtle/networks/xmg.hpp	87.50%	8 Missing ⚠️
...mockturtle/algorithms/balancing/esop_balancing.hpp	88.70%	7 Missing ⚠️
include/mockturtle/algorithms/balancing.hpp	91.93%	5 Missing ⚠️
.../mockturtle/algorithms/balancing/sop_balancing.hpp	83.33%	5 Missing ⚠️
include/mockturtle/networks/mig.hpp	93.33%	3 Missing ⚠️
include/mockturtle/views/fanout_view.hpp	72.72%	3 Missing ⚠️
include/mockturtle/networks/xag.hpp	94.44%	2 Missing ⚠️
include/mockturtle/algorithms/rewrite.hpp	80.00%	1 Missing ⚠️
... and 1 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #616      +/-   ##
==========================================
+ Coverage   84.18%   84.28%   +0.09%     
==========================================
  Files         178      178              
  Lines       24168    24893     +725     
==========================================
+ Hits        20346    20980     +634     
- Misses       3822     3913      +91     

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