[VIM] Add EnhancedDiff plugin and vimdiff alias
[VIM] Add EnhancedDiff plugin and vimdiff alias

This provides a set of useful shortcuts for vimdiff usage.

Signed-off-by: Patrick Bellasi <431c86f368affbc3148c4669fbd465131f7e82cb@arm.com>

derkling/dotfiles,derkling/dotfiles,derkling/dotfiles,derkling/dotfiles