Reworked serialization extensions and format names #400

Job	Run time
plugins / Build Windows	5m 23s
plugins / Build Linux	4m 17s
plugins / Build Mac	6m 44s
plugins / Check Linux zip is created	3s
plugins / Check Windows zip is created	10s
plugins / Check Mac Intel zip is created	2s
plugins / Check Mac ARM zip is created	6s
plugins / Save dl stats of previous build	10s
plugins / Re-create release	3s
plugins / Upload Linux zip	12s
plugins / Upload Mac ARM zip	4s
plugins / Upload Windows zip	7s
plugins / Upload Mac Intel zip	9s
plugins / Find dependent repositories	3s
plugins / Build dependent (OpenPonk/plugins, master, true)	2s
	17m 35s

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