Problem: filetype: bright(er)script files are not recognized
Solution: detect *.bs files as brighterscript filetype and *.brs as
brightscript filetype, include filetype plugins (Riley Bruins)
closes: #17566
Signed-off-by: Riley Bruins <ribru17@hotmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
