[FEATURE] Patcher should validate files individually

[th3-z]

Is your feature request related to a problem? Please describe.
The patcher validates all files and exits if any fail, it should be possible to patch files that pass validation and skip the dirty files.

Describe the solution you'd like
Skip invalid files, patch valid ones. An info message should also be added to notify the user of what files have been skipped.

Describe alternatives you've considered
Redownloading clean files just to add another patch is possible but annoying.

Additional context
Many users have already modified their webadmin files manually and will just need the header change to alow kf2-ma detection.

[th3-z]

Removing the milestone and backlogging. I don't think this is important, it only validates relevant files.