Added mouse scroll support to entry_sdl.
Added mouse scroll support to entry_sdl.

sergeScherbakov/bgfx,attilaz/bgfx,andr3wmac/bgfx,v3n/bgfx,bkaradzic/bgfx,Vertexwahn/bgfx,jdryg/bgfx,mendsley/bgfx,elmindreda/bgfx,cuavas/bgfx,fluffyfreak/bgfx,kondrak/bgfx,Vertexwahn/bgfx,ming4883/bgfx,Extrawurst/bgfx,marco-we/bgfx,emoon/bgfx,ocornut/bgfx,mcanthony/bgfx,bkaradzic/bgfx,septag/bgfx,BlueCrystalLabs/bgfx,LSBOSS/bgfx,jdryg/bgfx,darkimage/bgfx,marco-we/bgfx,darkimage/bgfx,sergeScherbakov/bgfx,emoon/bgfx,BlueCrystalLabs/bgfx,sergeScherbakov/bgfx,bkaradzic/bgfx,jpcy/bgfx,LWJGL-CI/bgfx,septag/bgfx,cuavas/bgfx,MikePopoloski/bgfx,marco-we/bgfx,Synxis/bgfx,ktotheoz/bgfx,Extrawurst/bgfx,septag/bgfx,aonorin/bgfx,elmindreda/bgfx,janstk/bgfx,ocornut/bgfx,MikePopoloski/bgfx,LWJGL-CI/bgfx,Synxis/bgfx,jdryg/bgfx,mendsley/bgfx,BlueCrystalLabs/bgfx,mcanthony/bgfx,mendsley/bgfx,LSBOSS/bgfx,attilaz/bgfx,cyndis/bgfx,attilaz/bgfx,fluffyfreak/bgfx,fluffyfreak/bgfx,Synxis/bgfx,ming4883/bgfx,mmicko/bgfx,LWJGL-CI/bgfx,jpcy/bgfx,Vertexwahn/bgfx,LWJGL-CI/bgfx,v3n/bgfx,darkimage/bgfx,mmicko/bgfx,elmindreda/bgfx,aonorin/bgfx,jpcy/bgfx,janstk/bgfx,mcanthony/bgfx,ming4883/bgfx,andr3wmac/bgfx,cuavas/bgfx,ktotheoz/bgfx,ktotheoz/bgfx,LSBOSS/bgfx,Extrawurst/bgfx,jdryg/bgfx,0-wiz-0/bgfx,kondrak/bgfx,fluffyfreak/bgfx,emoon/bgfx,jpcy/bgfx,0-wiz-0/bgfx,janstk/bgfx,ocornut/bgfx,cyndis/bgfx,bkaradzic/bgfx,cyndis/bgfx,kondrak/bgfx,mmicko/bgfx,0-wiz-0/bgfx,MikePopoloski/bgfx,andr3wmac/bgfx,aonorin/bgfx,v3n/bgfx