CI: Split builds of examples into separate jobs.
CI: Split builds of examples into separate jobs.

(cherry picked from commit ee73b1b5a47f176ab123239aa3cbcc2cdf284383)

ocornut/imgui,nProtect/imgui,Flix01/imgui,aimotive/imgui-glfw,ocornut/imgui,Flix01/imgui,burningreggae/imgui,ggtucker/imgui,bkaradzic/imgui,burningreggae/imgui,ocornut/imgui,nProtect/imgui,bkaradzic/imgui,bkaradzic/imgui,nProtect/imgui,dougbinks/imgui,dougbinks/imgui,Flix01/imgui,aimotive/imgui-glfw,ggtucker/imgui,ggtucker/imgui