Clean up dependencies

fix cipher parser 20200823

fix go mod semantic versioning

Merge pull request kkdai#97 from Julian-Chu/master

add Formats and AdaptiveFormats to Video

Add GoReleaser

Merge pull request kkdai#81 from Julian-Chu/add-error-check-to-decipher

Add error check to decipher

Merge pull request kkdai#63 from appleboy/refactor

chore(main): some improvement.

Merge pull request kkdai#29 from nitrix/fix/issue-28

Fixes issues kkdai#28, invalid filenames on some OSes

Merge pull request kkdai#27 from Julian-Chu/add-cipher

Add cipher support for encrypting URL

fix kkdai#26 update youtube video format