[FEA] One Class + General Update

# One Script (One Class) Update
- Update to combine [retweet_for_clout.py](https://github.com/gumdropsteve/twitter/blob/master/retweet_for_clout.py) and [tweet.py](https://github.com/gumdropsteve/twitter/blob/master/tweet.py) into one Python file containing one class like seen with [InstagramBot](https://github.com/gumdropsteve/instagram/blob/master/bot.py) class of gumdropsteve/instagram repo
- Perhaps name the script `bot.py`
- Thinking to eventually combine all social media repos
- I.e. [instagram](https://github.com/gumdropsteve/instagram), [linkedin](https://github.com/gumdropsteve/linkedin), [facebook](https://github.com/gumdropsteve/facebook), [twitter](https://github.com/gumdropsteve/twitter)
- Making them all as uniform as possible in structure would help with this
## General Update
- layout/aesthetics of repo
- Coding skills have improved a lot
- README.md needs updating
- Is out of date with current & will need to reflect new version
- Testing of scripts needs to be redone
- To make sure they still work

Start by comparing retweet_for_clout.py and tweet.py with the InstagramBot pattern in bot.py. Review README.md and the current script behavior, then confirm that the combined Python file preserves the existing functionality, the README reflects the updated structure, and the scripts still work.

Written by the indexing model from the issue text.