Minor imgui fixes.
Minor imgui fixes.

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