[A26][Stella] Adds support for the console Select switch

[bigbass1997]

In order to implement this, some arguments from stella_frame_advance() had to be condensed.

To keep things consistent, I combined together all of the switches that belong to the same memory register. The power switch remains separate. Like the Reset switch, the Select switch defaults to a high (1) state, and when pressed becomes low (0).

Since the waterboxed core already had a function for changing the TV color switch, I also added partial handling for that. But it will still have to be hooked up on the BizHawk side (in Stella.IEmulator.cs) in order for BizHawk to be capable of switching it. For now, it's always set to the Color (1) state.

I've tested to confirm all of the inputs (both controllers and console switches) are working as intended.

Resolves #4175

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