Enhancement: More point_tesla Options

[Konclan]

What would this enhancement be for?

Entity

Describe your enhancement suggestion in more detail

point_tesla is pretty good for creating a lot of arcing beams but unlike env_beam it has no spawnflags. Spawnflags like 'Start Sparks', 'End Sparks', and 'End Decal' as well as a new one 'Silent' to stop it from playing noise (Setting the sound to Default.Null works too). Also the ability to change the end decal texture.

[Konclan]

I guess alternatively env_beam could be changed to have a beam count property with random_strike and be given a sound property