Make the shrink wave sphere disappear after it has been cast.

[emanisgrand]

Is your feature request related to a problem? Please describe. The ShrinkCast object needs to appear when it's called, then disappear after it reaches the max size.

Describe the solution you'd like Make the object inactive by default, then activate it when the button is pressed, then deactivate it after about 0.5f or 0.7f seconds.

Describe alternatives you've considered

• Turning off the mesh renderer.
• have it always active, but too small to see.

Additional context See #18