Fixes to the DDS loader
Fixes to the DDS loader

* Added missing format info entries for ATI1 and ATI2 formats
* Added missing A2XY format

Valentactive/godot,sanikoyes/godot,Faless/godot,vkbsb/godot,honix/godot,honix/godot,Zylann/godot,Zylann/godot,Faless/godot,godotengine/godot,Paulloz/godot,honix/godot,akien-mga/godot,vkbsb/godot,pkowal1982/godot,guilhermefelipecgs/godot,MarianoGnu/godot,Shockblast/godot,sanikoyes/godot,sanikoyes/godot,vkbsb/godot,vkbsb/godot,josempans/godot,Shockblast/godot,godotengine/godot,Zylann/godot,Zylann/godot,Valentactive/godot,firefly2442/godot,DmitriySalnikov/godot,vnen/godot,Faless/godot,Valentactive/godot,ex/godot,Shockblast/godot,MarianoGnu/godot,Valentactive/godot,ex/godot,vnen/godot,josempans/godot,BastiaanOlij/godot,godotengine/godot,MarianoGnu/godot,BastiaanOlij/godot,ZuBsPaCe/godot,godotengine/godot,vkbsb/godot,ex/godot,Paulloz/godot,Valentactive/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,Zylann/godot,pkowal1982/godot,MarianoGnu/godot,pkowal1982/godot,ZuBsPaCe/godot,firefly2442/godot,pkowal1982/godot,firefly2442/godot,pkowal1982/godot,Shockblast/godot,vnen/godot,firefly2442/godot,godotengine/godot,ex/godot,Zylann/godot,guilhermefelipecgs/godot,akien-mga/godot,godotengine/godot,josempans/godot,BastiaanOlij/godot,DmitriySalnikov/godot,pkowal1982/godot,Shockblast/godot,BastiaanOlij/godot,sanikoyes/godot,godotengine/godot,Faless/godot,firefly2442/godot,Paulloz/godot,MarianoGnu/godot,josempans/godot,Shockblast/godot,guilhermefelipecgs/godot,akien-mga/godot,Faless/godot,MarianoGnu/godot,vkbsb/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,Zylann/godot,vkbsb/godot,guilhermefelipecgs/godot,guilhermefelipecgs/godot,Paulloz/godot,DmitriySalnikov/godot,firefly2442/godot,guilhermefelipecgs/godot,ex/godot,Valentactive/godot,firefly2442/godot,Faless/godot,Faless/godot,ZuBsPaCe/godot,sanikoyes/godot,ZuBsPaCe/godot,sanikoyes/godot,DmitriySalnikov/godot,akien-mga/godot,DmitriySalnikov/godot,BastiaanOlij/godot,ZuBsPaCe/godot,vnen/godot,ex/godot,josempans/godot,Faless/godot,godotengine/godot,Paulloz/godot,honix/godot,pkowal1982/godot,akien-mga/godot,josempans/godot,sanikoyes/godot,honix/godot,vkbsb/godot,Valentactive/godot,Zylann/godot,DmitriySalnikov/godot,josempans/godot,vnen/godot,Paulloz/godot,vnen/godot,pkowal1982/godot,MarianoGnu/godot,ex/godot,Shockblast/godot,firefly2442/godot,ZuBsPaCe/godot,vnen/godot,DmitriySalnikov/godot,akien-mga/godot,akien-mga/godot,BastiaanOlij/godot,Paulloz/godot,Valentactive/godot,MarianoGnu/godot,ex/godot,honix/godot,josempans/godot,Shockblast/godot,sanikoyes/godot,akien-mga/godot,BastiaanOlij/godot,BastiaanOlij/godot,vnen/godot