add sway LICENSE file

part of the code in dwl is taken from sway, so credit it.
dwm and sway are both licensed under the MIT license

making this a team

add TinyWL and dwm LICENSE files

Credit where credit is due - dwl started with TinyWL and will be
including more bits of dwm code as it grows

Start with tinywl

Add a config.h into which configurables can be moved.