TTT: Fixed eye angles being odd when switching players with LMB after exiting propspec.

After exiting propspec, it is likely that your eye angles will be at odd angles. When pressing the LMB to switch to a random player, these eye angles were still set so you will likely be spectating with an awkward roll.

This fix resets the eye angles whenever you press the LMB while spectating.
Merge pull request #688 from Bo98/ttt_spectate-eyeangles-fix

TTT: Fixed eye angles being odd when switching players with LMB after exiting propspec