vim-git-add-del_Hack

When you "add -p <e (edit) flag>" and are doing a refactor.

1. Add deletions first "for a simplifying project commit"
2. Add additions "for code has moved to here commit"

Implementation instructions, see #1 (plan)[#1]

1. vim plugin recognizes previous command contained 'git * -p'
2. plugin recognizes that it is in -e (edit) mode for -p command.
3. :add and :del ...
   Text manipulation occurs to:
4. add(), remove the lines that contain + upon
5. del(), convert - to ' '