Adicionado dois métodos para consulta de corretoras com a api

[MaxwellAt]

Eu tomei a liberdade de implementar dois metodos para consumir informações de uma rota que retorna informações sobre corretoras do brasil.

[codecov-commenter]

Codecov Report

Merging #14 (e1e938d) into master (acf5348) will not change coverage. The diff coverage is 100.00%.

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@@            Coverage Diff            @@
##            master       #14   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            8         8           
  Lines          264       290   +26     
=========================================
+ Hits           264       290   +26     

Impacted Files	Coverage Δ
brasilapy/client.py	100.00% <100.00%> (ø)
brasilapy/models/general.py	100.00% <100.00%> (ø)