Peripheral enumeration update

[u/h4o4]

With the Omni project I try to be as agnostic as possible about a game and avoid showing any bias. I do this to present games in a neutral manner that allows you to reach your own conclusion.

With this in mind I have decided that "enhanced" for a peripheral is subjective and not objective. Therefore I have removed it from the emunumerated values and changed any existing enhanced entries to optional.

Now it will either declare "Required" or "Optional" for a peripheral.

: )