Fix functions listing all theme resources
Fix functions listing all theme resources

Fix functions get_<resource>_list in Theme currently returning vector
of double-the-necessary size with the first half completely empty.

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