Semantic branch names

Add interactive command for creating semantic branch names.

Format would be:

<emoji>-<type>/<date>/<name>

• type is one of

Example:

🔥-hotfix/2020-07-17/broken-db-connection

Command could be:

git-cz b
git-cz branch

• type and emoji should be customizable.
• default types are
  • feat
  • fix
  • hotfix
  • release
• date should be in YYYY-MM-DD format.
• date could be disabled in config