[GAME] Stasis Grenade vortex should have visible model to represent radius

[1upD]

Is your feature request related to a problem? Please describe.

It is difficult to tell how far the effects of the stasis grenade extend. There should be a way for the stasis grenade radius to be visualized.

Describe the solution you'd like

I would like to have a simple model that is displayed while the stasis vortex is active. This model can then correspond to the size of the radius set in the ConVar. Nothing is needed to ensure the model is the right size, that can be the responsibility of the developers.

Describe alternatives you've considered

A particle effect could be used instead, but it would need to show exactly how far the effect extends. I think that a model would be a simple solution because it could look like a sphere with a material applied.

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Additional context

This is being requested for the next EZ2 content.