Added a few lines to melee friendlyfire for Ellis and Rochelle

Removed custom criteria that went unused

Small fixes

- Nick's "Gotta find some real first aid" pills line will now only play when he doesn't have first aid

- Added Witch Cr0wn voicelines
- Added a few bot idle lines
- Minor fixes

- Added unused Rochelle HeardSmokerToo voiceline

- Added a few bot idle lines
- Added a few select unused exertion lines to the L4D1 survivors (when hurt or when bleeding out)

- Changed some Rochelle FF responses (can be viewed here)

Makes Ellis' response more consistent when compared to the others, and now every survivor has a different way they avoid responsibility.

- Improved workshop image
- Added a few idle lines