[TF2] MvM Tank support for Mappers/Vscripters

[ALIEN31ITA]

This Pull Request adds 3 inputs & 1 output usable for Vscripters and Mappers to decide how a tank should act.
normally we need to use Hacky ways to force the Tank to do specific things, the most common one is setting the path.
This also fixes a major problem with Tanks falling thru invisible textures (grates,glass, anything transparent really), which usually can be fixed by using static props, either visible or with low fade distances!!!

This also includes a Spawnflag for disabling the glow.

Collision Fix

tf_mvm_tank_collisionmask - 1 Fix, 0 - Legacy/Vanilla - Reason for the Convar is some legacy maps may break if the map creator uses the old collision system (for some reason).

2025-09-15.21-36-19.mp4

SetPath

Tell him where to go, you can also clear his path by passing nothing.

2025-09-15.22-40-46.mp4

ForceDeploy

2025-09-15.22-42-24.mp4

CanDeploy

Gives permission for the tank if it can Deploy or not.

2025-09-15.22-57-39.mp4

OnBombDeployed

Usually set by popfiles, but this is for manually map/vscript spawned ones!
For Example: When the bomb gets Deployed, All players will bleed for 5 seconds.

2025-09-15.22-47-02.mp4

I am not hoping much but, this would be a great addition for the recent MvM Blogpost...
this would go great along:
Deploy sound Stop fix
Tank Wavebar improvement

[HyperionCoding]

Committing gitignore probably wasn't intended.

[ALIEN31ITA]

Committing gitignore probably wasn't intended.

yup, i am not a big brainer there, whoops...