Add a "log" implementation #78
Description
We currently have no implementation to make access of git logs easier. We should create a wrapper for this which allows for users to:
- Retrieve the last n log statements, with the option to view them on a single line (
--oneline) - Search log commit messages for any number of strings
- Have an option to run a diff between any two hashes in log statements OR a hash from a log statement and HEAD
This is a preliminary list. Features may change based on the experience each of us has with using git log.