This prevents the Windows headers from defining min/max macros.
Use std::min and std::max.
Modifies deps, frontend, libobs-d3d11, libobs-winrt, decklink, obs-vst,
and win-dshow.
Status output related to OBS configuration is prefixed with the string
"OBS" and added padding for enabled and disabled features. This padding
was not aligned between platforms.
By moving the padding and prefix decoration into its own function,
both elements are controlled in a single place. CMake scripts were
changed to use this new function `obs_status` instead of using CMake's
`message` function directly.