Partially implement move command

Works:

- move [container|window] to workspace <name>
    - Note, this should be able to move C_CONTAINER but this is untested
- move [workspace] to output [left|right|up|down|<name>]

Not implemented yet:

- move [left|right|up|down]
- move scratchpad
- move position

sway/meson.build

@@ -19,6 +19,7 @@ sway_sources = files(
 	'commands/input.c',
 	'commands/layout.c',
 	'commands/mode.c',
+	'commands/move.c',
 	'commands/seat.c',
 	'commands/seat/attach.c',
 	'commands/seat/fallback.c',