Adding additional build environments for AppVeyor
Adding additional build environments for AppVeyor

Signed-off-by: Remigiusz Kołłątaj <2fbee66267fc98e13fb331b3267f5e191bcb467f@gmail.com>

godbyk/spdlog,COMBINE-lab/spdlog,hunter-packages/spdlog,hunter-packages/spdlog,hunter-packages/spdlog,COMBINE-lab/spdlog,COMBINE-lab/spdlog,godbyk/spdlog,godbyk/spdlog