[freebsd91p7][vim] Big improvements for vim performance and features.

[vim] 1. merge .vimrc and .vimrc.rich; new VIM_DISABLE_RICH introduced
[vim] 2. new 'vip': create project files automatically (if necessary)
[vim] 3. new 'ZZ' key map to force saving and quit
[vim] 4. new plugin 'vim-vandomkeyhint' to show user-defined hotkey hints