[RFC] `hit new` without arguments should choose the only assigned issue and create a branch for it

[chshersh]

Often enough, I have only one issue assigned to me in a project. In that case, my workflow looks like this:

1. hit issue to see the issue number
2. hit new 1234 to create a branch.

I propose to patch hit new command, so it automatically chooses the issue if you have only one issue assigned to you. With the following handling of exceptional cases:

• If you have multiple issues assigned to you, start an interactive process to ask which one you want by displaying all issues assigned to you
• If you don't have any issues assigned to you, ask to create a new issue (after #65 is implemented)

Inside this interactive process, it should be possible to write a raw text of the branch name if you don't want to attach the branch to an issue.

[vrom911]

@chshersh Do you think that it makes sense to have this behaviour for the new command only when --me option is specified? Or it is okay to do so without this option?

[chshersh]

@vrom911 I think it's a good idea to be more explicit 👍 I agree with the --me option