Update aqfp_view data structure

[lee30sonia]

• Updates the internal data structure of aqfp_view to prepare for optimization algorithms.
• Cleans up related documentation.
• Updates its interfaces and default parameter values.
• Makes it immutable to eliminate complications.

[codecov-commenter]

Codecov Report

Merging #456 (acd77eb) into master (b2a1ee2) will increase coverage by 0.08%.
The diff coverage is 91.30%.

@@            Coverage Diff             @@
##           master     #456      +/-   ##
==========================================
+ Coverage   82.72%   82.80%   +0.08%     
==========================================
  Files         133      133              
  Lines       15100    15107       +7     
==========================================
+ Hits        12491    12509      +18     
+ Misses       2609     2598      -11     

Impacted Files	Coverage Δ
include/mockturtle/views/aqfp_view.hpp	89.51% <91.30%> (+10.02%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b2a1ee2...acd77eb. Read the comment docs.

[coveralls]

Pull Request Test Coverage Report for Build 806634106

• 87 of 95 (91.58%) changed or added relevant lines in 1 file are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.06%) to 83.055%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
include/mockturtle/views/aqfp_view.hpp	87	95	91.58%

Files with Coverage Reduction	New Missed Lines	%
include/mockturtle/algorithms/dsd_decomposition.hpp	3	87.32%

Totals
Change from base Build 799352544:	0.06%
Covered Lines:	13087
Relevant Lines:	15757

---

💛 - Coveralls