Allow parameters like "branch:develop" the same way as "branch: develop"

[ilyapuchka]

Current implementation of CLI template allows to specify format for the argument preceding it's value, i.e. --name or name:. But i.e. in fastlane one can specify options with : without space after it, which will make it one parameter together with the value, i.e. branch:develop, rather than two separate parameters branch: and develop. Currently only the later option is properly handled.