Adiciona verificação de linha digitável + outros

[rodrigondec]

Resumo

Esse PR refatora e adiciona muitas coisas.

Dentre elas:

• refatora métodos do utils.py para services/
• adiciona ModService com cálculo de módulo 10 e 11 (digitos verificadores)
• adiciona BarcodeService.codeline_to_barcode
• adiciona BarcodeService.barcode_to_codeline
• adiciona BarcodeService.calculate_barcode_dv
• adiciona BarcodeService.calculate_codeline_dv
• adiciona BarcodeService.validate_codeline
• adiciona BarcodeService.validate_codeline

[codecov[bot]]

Codecov Report

Merging #19 (6374bda) into main (eaf6915) will increase coverage by 4.94%. The diff coverage is 96.00%.

@@            Coverage Diff             @@
##             main      #19      +/-   ##
==========================================
+ Coverage   79.00%   83.95%   +4.94%     
==========================================
  Files           7       12       +5     
  Lines         281      405     +124     
==========================================
+ Hits          222      340     +118     
- Misses         59       65       +6     

Impacted Files	Coverage Δ
bb_wrapper/utils.py	100.00% <ø> (ø)
bb_wrapper/services/mod.py	86.84% <86.84%> (ø)
bb_wrapper/services/barcode.py	98.50% <98.50%> (ø)
bb_wrapper/models/boleto.py	100.00% <100.00%> (ø)
bb_wrapper/services/b64.py	100.00% <100.00%> (ø)
bb_wrapper/services/qrcode.py	100.00% <100.00%> (ø)
bb_wrapper/services/unicode.py	100.00% <100.00%> (ø)
bb_wrapper/wrapper/cobrancas.py	66.19% <100.00%> (ø)
... and 3 more

Impacted Files	Coverage Δ
bb_wrapper/utils.py	100.00% <ø> (ø)
bb_wrapper/services/mod.py	86.84% <86.84%> (ø)
bb_wrapper/services/barcode.py	98.50% <98.50%> (ø)
bb_wrapper/models/boleto.py	100.00% <100.00%> (ø)
bb_wrapper/services/b64.py	100.00% <100.00%> (ø)
bb_wrapper/services/qrcode.py	100.00% <100.00%> (ø)
bb_wrapper/services/unicode.py	100.00% <100.00%> (ø)
bb_wrapper/wrapper/cobrancas.py	66.19% <100.00%> (ø)
... and 3 more