Implement death camera

On death, do some cool camera movements, such as looking down on your dead body or following the killer player for a while.

Depends on #27

[0xCiBeR]

I'll work on this as soon as you clear issue #27

@ciber96, Issue #27 has become a bigger thing and you might not want to wait for it.
Go ahead with this, I will fix the conflicts later.

@ciber96, could you not entangle this feature with the rest of the code? You could make this in a separated environment, such as a new file and make the moves happen on a command. That should make easier for both of us to integrate with the rest of the code.

[0xCiBeR]

This should be implemented here https://github.com/NullSystemWorks/mtabg/blob/master/battlegrounds/class/sPlayer.lua#L528
Maybe use killcam?

It's probably a better idea to move the camera not on the server, but on the client.
What is 'killcam'?