Add an option to ignore user defined packages

[Elyorbe]

Hi, thanks for the nice work. I would like to contribute to the project.

Problem: Some developer defined classes may need to be ignored when obfuscating. For example, the class needs to be left untouched when it is used for marshalling.

Solution: Adding an option to ignore user defined packages is needed.

Current commit adds an option to take a file, which lists packages to ignore, as a parameter. For example, if the file lists these package names

tech.ibrokhimov.dontobfuscate
tech.ibrokhimov.ignore

Obfuscapk ignores all the classes inside those packages. This is effective for field, class, and method rename options.

[ClaudiuGeorgiu]

Hi @Elyorbe, thanks for your interest in this project and for the contribution, I think it will be a useful feature. Please fix the tests and add a brief paragraph in the readme describing how to use this new feature, then I'll review and merge the PR. Thanks!

[codecov]

Codecov Report

Merging #65 (e62aebd) into master (d2f528b) will increase coverage by 0.25%.
The diff coverage is 71.42%.

@@            Coverage Diff             @@
##           master      #65      +/-   ##
==========================================
+ Coverage   77.53%   77.78%   +0.25%     
==========================================
  Files          49       49              
  Lines        2435     2449      +14     
  Branches      485      484       -1     
==========================================
+ Hits         1888     1905      +17     
+ Misses        423      416       -7     
- Partials      124      128       +4     

Impacted Files	Coverage Δ
src/obfuscapk/main.py	95.45% <ø> (ø)
src/obfuscapk/obfuscation.py	83.92% <50.00%> (-1.10%)	⬇️
...fuscapk/obfuscators/method_rename/method_rename.py	85.91% <66.66%> (+0.40%)	⬆️
...obfuscapk/obfuscators/field_rename/field_rename.py	81.81% <72.72%> (-1.52%)	⬇️
src/obfuscapk/cli.py	88.37% <100.00%> (-4.13%)	⬇️
...obfuscapk/obfuscators/class_rename/class_rename.py	86.11% <100.00%> (+0.29%)	⬆️
...c/obfuscapk/obfuscators/virus_total/virus_total.py	33.33% <0.00%> (+5.55%)	⬆️

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[Elyorbe]

Hi @Elyorbe, thanks for your interest in this project and for the contribution, I think it will be a useful feature. Please fix the tests and add a brief paragraph in the readme describing how to use this new feature, then I'll review and merge the PR. Thanks!

I fixed all except Codacy test, couldn't figure out how to make it happy. Failing test case is related to readme. I think you can help me with that part. Please review the changes. Thanks!

[ClaudiuGeorgiu]

Thanks for the contribution @Elyorbe!

[Elyorbe]

Happy to be a part of the project even with small contribution!