Firer-only Message and EVA on superweapon activated

[Flactine]

Adds Message.Activated.Firer and EVA.Activated.Firer for superweapons.
Unlike Message.Activated and EVA.Activated, this message and EVA are played only for the player who fires the superweapon, instead of being broadcast to all players.

[SOMESW]                    ; SuperWeaponType
Message.Activated.Firer=    ; CSF entry key
EVA.Activated.Firer=        ; EVA entry

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[github-actions]

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[TaranDahl]

Use AffectedHouses enum plz

[TaranDahl]

Or maybe EVA.Activated.Owner/Allies/Enemies could be better?