Add Command line mode + Refactoring of code#1

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Caiofcas wants to merge 10 commits intobio-coding:masterfrom

Caiofcas:master

Commits on Oct 14, 2020

add gitignore
Caio
committed

Commits on Oct 15, 2020

add requirements txt
Caio
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add command line interface
Caio
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change output format to tsv + --help commands
Caio
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small cleanup
Caio
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begining of cleanup of code
Caio
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more cleanup
Caio
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final cleanup. VERSION FOR COMPARING IMPLEMENTATIONS
Caio
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Replace old version with refactored one
Caio
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fix subversion
Caio
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