Push Event schemas out to Deck

As discussed (on twitter!), pushed Event records out to Deck
- inlined `PlayerPlayedWrong` as `PlayerPlayedAtWrongTurnEvent` and `PlayerPlayedWrongCardEvent` to in anticipation of desire to use Event type name to uniquely identify/route events

Debatable points (feel free to push back/remove)
- reformatted to single line record as want to cause tension if it doesnt fit on a line (in order to help a UL fit in a file until that causes a similarly good tension )

Now...  `GameStartedEvent`  is now in namespace `FsUno.Domain.Deck`. For me, this makes me think:
- take `Domain` out of the picture - rename the assembly to `FsUno` and rename `FsUno` to `FsUno.Console` (to make way for a `FsUno.Web` placeholder which someone will do as an exercise :)
- Maybe call the file `Domain.fs` and put the `Deck` stuff in a Deck module (in the same file)

And... If we're trying to build a legible UL / DSL, Digit's junk *has to* get out of this file (and I really don't like the agonizing over perf in a UL, or the ugliness of [<Struct>])!
- put `digit` into `Deck.fs` (maybe in some AutoOpen module?)

I wonder does @swlaschin have any nice ways to manage the last bit (gating creation of a value type (or pretty lightweight int)) and more general proposals (see, I got him to using records over v3.1 named tuples and using a DU for the GameId so far!)