Implementing decorate command

[odair-pedro]

Implemented command for pull request decoration

[coveralls]

Pull Request Test Coverage Report for Build 328977795

• 82 of 151 (54.3%) changed or added relevant lines in 4 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+1.7%) to 56.111%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
cmd/validate.go	4	12	33.33%
cmd/decorate.go	16	77	20.78%

Files with Coverage Reduction	New Missed Lines	%
cmd/validate.go	1	48.24%

Totals
Change from base Build 328157488:	1.7%
Covered Lines:	404
Relevant Lines:	720

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💛 - Coveralls