Changed the enemies spawning system so that either "Alive" enemies or "Static" enemies are spawned, based on random number generation.
In accordance with the previous change, the scene was altered, removing the previously used "static" enemies. This fixed the photonView bug regarding the static enemies destruction; they were placed in the hierarchy directly rather than being Photon Instantiated.

Additionally, another scroll bar was added to the options menu: one for x axis sensitivity change, the other for y axis. Functionality was added for both of these in order to let the scroll bards alter the player sensitivity, saving it in the process.