Ability to view blank folders

[andrewiankidd]

empty folders dont work...
this is because the current hack to get folders is to split by /, could patch this but going to move to a combination of lsd and lsl instead for better performance

ie currently it works via
lstExplorer.items = rclone lsl remote:/path/ & split by / to tell if directory or not
(since empty folders only have content on one side of the slash, they get skipped over)

new way:
lstExplorer.items = rclone lsd remote:/path/
lstExplorer.items += rclone lsl -max-depth 1

which instead of one big slow query and function, two quick querys return the exact needed data

[andrewiankidd]

02b4908