Extend binding with parsing

[tfiedor]

This PR is required for our experiments, I would appreciate faster and more lenient reviews.

It simply adds from_mata fucntion for parsing single or multiple mata files.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.04% ⚠️

Comparison is base (d1f1bb9) 72.74% compared to head (1f8033b) 72.70%.
Report is 1 commits behind head on devel.

❗ Current head 1f8033b differs from pull request most recent head 91fee94. Consider uploading reports for the commit 91fee94 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##            devel     #334      +/-   ##
==========================================
- Coverage   72.74%   72.70%   -0.04%     
==========================================
  Files          33       33              
  Lines        4146     4148       +2     
  Branches      953      953              
==========================================
  Hits         3016     3016              
- Misses        755      757       +2     
  Partials      375      375              

Files Changed	Coverage Δ
include/mata/nfa/builder.hh	80.00% <ø> (ø)
include/mata/parser/inter-aut.hh	97.29% <0.00%> (ø)
src/nfa/builder.cc	79.84% <0.00%> (-1.26%)	⬇️

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[tfiedor]

Sadly, there is some issue with tests, I will solve it next week and use custom branch for experiments.

[Adda0]

LGTM. Do not forget to fix the Python test later on.