Tables: moved TableHeadersRow(), TableHeader() to their own section.
Tables: moved TableHeadersRow(), TableHeader() to their own section.

bkaradzic/imgui,Flix01/imgui,ocornut/imgui,nProtect/imgui,bkaradzic/imgui,ggtucker/imgui,ocornut/imgui,nProtect/imgui,nProtect/imgui,ggtucker/imgui,Flix01/imgui,bkaradzic/imgui,ocornut/imgui,Flix01/imgui,ggtucker/imgui