Problem: filetype: leo files are not recognized
Solution: detect '*.leo' files as leo filetype, include
a filetype plugin (Riley Bruins)
References:
https://github.com/ProvableHQ/leocloses: #15988
Signed-off-by: Riley Bruins <ribru17@hotmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>