Fix Collada material roughness import function 4
Fix Collada material roughness import function 4

Made import conversion linear.
akien-mga/godot,okamstudio/godot,Zylann/godot,DmitriySalnikov/godot,guilhermefelipecgs/godot,DmitriySalnikov/godot,DmitriySalnikov/godot,akien-mga/godot,groud/godot,pkowal1982/godot,ZuBsPaCe/godot,akien-mga/godot,NateWardawg/godot,godotengine/godot,sanikoyes/godot,groud/godot,josempans/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,josempans/godot,Faless/godot,Shockblast/godot,MarianoGnu/godot,guilhermefelipecgs/godot,vkbsb/godot,godotengine/godot,RandomShaper/godot,ZuBsPaCe/godot,honix/godot,mcanders/godot,Zylann/godot,vkbsb/godot,BastiaanOlij/godot,RandomShaper/godot,Zylann/godot,mcanders/godot,akien-mga/godot,MarianoGnu/godot,okamstudio/godot,sanikoyes/godot,BastiaanOlij/godot,Paulloz/godot,pkowal1982/godot,ZuBsPaCe/godot,Valentactive/godot,guilhermefelipecgs/godot,Faless/godot,Paulloz/godot,godotengine/godot,ex/godot,firefly2442/godot,BastiaanOlij/godot,honix/godot,Paulloz/godot,ex/godot,DmitriySalnikov/godot,vnen/godot,Zylann/godot,vkbsb/godot,RandomShaper/godot,vnen/godot,DmitriySalnikov/godot,NateWardawg/godot,groud/godot,firefly2442/godot,BastiaanOlij/godot,akien-mga/godot,MarianoGnu/godot,sanikoyes/godot,ex/godot,MarianoGnu/godot,vkbsb/godot,MarianoGnu/godot,okamstudio/godot,josempans/godot,mcanders/godot,Shockblast/godot,godotengine/godot,vnen/godot,sanikoyes/godot,firefly2442/godot,vnen/godot,groud/godot,Paulloz/godot,vkbsb/godot,josempans/godot,Valentactive/godot,Faless/godot,Faless/godot,Faless/godot,Shockblast/godot,akien-mga/godot,okamstudio/godot,Shockblast/godot,BastiaanOlij/godot,MarianoGnu/godot,Zylann/godot,Shockblast/godot,NateWardawg/godot,firefly2442/godot,firefly2442/godot,ex/godot,Paulloz/godot,vkbsb/godot,pkowal1982/godot,sanikoyes/godot,okamstudio/godot,groud/godot,Valentactive/godot,Shockblast/godot,ex/godot,ZuBsPaCe/godot,vnen/godot,okamstudio/godot,DmitriySalnikov/godot,godotengine/godot,josempans/godot,firefly2442/godot,okamstudio/godot,RandomShaper/godot,Paulloz/godot,guilhermefelipecgs/godot,godotengine/godot,RandomShaper/godot,BastiaanOlij/godot,Faless/godot,godotengine/godot,guilhermefelipecgs/godot,guilhermefelipecgs/godot,ex/godot,ZuBsPaCe/godot,honix/godot,vkbsb/godot,pkowal1982/godot,vkbsb/godot,Faless/godot,josempans/godot,pkowal1982/godot,ZuBsPaCe/godot,sanikoyes/godot,NateWardawg/godot,NateWardawg/godot,ex/godot,mcanders/godot,RandomShaper/godot,pkowal1982/godot,BastiaanOlij/godot,ZuBsPaCe/godot,Zylann/godot,vnen/godot,NateWardawg/godot,NateWardawg/godot,josempans/godot,honix/godot,sanikoyes/godot,RandomShaper/godot,pkowal1982/godot,NateWardawg/godot,Zylann/godot,pkowal1982/godot,Zylann/godot,josempans/godot,honix/godot,DmitriySalnikov/godot,Shockblast/godot,akien-mga/godot,guilhermefelipecgs/godot,firefly2442/godot,okamstudio/godot,Valentactive/godot,sanikoyes/godot,Valentactive/godot,Paulloz/godot,akien-mga/godot,Faless/godot,honix/godot,NateWardawg/godot,vnen/godot,okamstudio/godot,groud/godot,mcanders/godot,ex/godot,mcanders/godot,Valentactive/godot,MarianoGnu/godot,BastiaanOlij/godot,godotengine/godot,Valentactive/godot,firefly2442/godot,MarianoGnu/godot,okamstudio/godot,vnen/godot,Valentactive/godot,Shockblast/godot