Allow setting player's eye angles without affecting viewmodel sway

[DoctorHugoSource]

Using the function player:SetEyeAngles() as it is currently will abruptly swing the player's viewmodel, due to viewmodel sway attempting to compensate for the change in angle. For a variety of use cases (stencils, portals, anything that may manipulate the player's view) it would be super useful to be able to change eye angles without affecting the viewmodel sway if possible

On the developer side, I believe a second argument to SetEyeAngles (a boolean like 'nosway' or something similar) would be a good way to implement it