feat: cache data, small refactor, add steamid in banip, bugs fix

[Rushaway]

Description

1. Cachae players data to make less repeatitive calls
2. Prevent banning people without correct steamid format (can lead to create https://github.com/sbpp/sourcebans-pp/issues/912 || https://github.com/sbpp/sourcebans-pp/pull/908#issuecomment-1646728085)
3. Add SteamID into CommandIP
4. Small refacotring to match sbpp comms code style (A full refactor will come in another PR later)
5. Improve string speed comparaison

Motivation and Context

1. Less calls to get the same data, DRY the code.
2. Fix #912
3. While banning someone via IP, the steamid was never stored, it was no-sense, it easier to track a player banned (via the steamid in search function of the website instead of IP who can be dynamic for the same SteamID) + that also make the total bans counts correct
4. After years and multiples PR from contributors, the global code style is different from one function to another
5. strcmp is way faster than StrEqual (benchmarks was made)

How Has This Been Tested?

In use since 6 months on https://bans.nide.gg/

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.

Edit: My bad, I didnt pushed the latest version of the plugin, this is now solved.