Purge and Reinstall mods button

[liamcannon]

This PR adds two new buttons to the mods page. 1.) Purge and Reinstall all mods, 2.) Purge and reinstall individual mod

Motivation and Context

Zorn asked for it

#197

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

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

Checklist:

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

[liamcannon]

shoot there's a bunch of changes I forgot to remove

[jupster]

@liamcannon Progress of this?

[jupster]

FASTER PURGE BETA TEST

[OverlordZorn]

Supprised to see it as an additional button - i dont mind it but i expected it to be a right-click context menu entry instead

Will test more in the upcoming days. so far - first try - did seem to work though.

One thing though - it would be nice if it also starts the update progress (to actually download the mod) once its done purging

[OverlordZorn]

I used this so far and have not found any issues

What it does so far is:
Purge folder while keeping it in the list and marking it as "needs update"

I'd prefer if it would automatically start the download of said mod again but its already an improvement so i'll stfu

[OverlordZorn]

@jupster see above

[jupster]

I'm on holidays till next week. I'll check over it, might look at putting it in with the EF update on the 26th.

Thanks for testing and giving a review