feat(vim): Add a vim action

vim will get the latest version of the plug-vim (ref:
https://github.com/junegunn/vim-plug/wiki/tips#automatic-installation),
but when deploying the 'vimrc' we have to download the plug-ins (ref:
https://dotdrop.readthedocs.io/en/latest/config-dotfiles/#dotfile-actions)

Signed-off-by: Jeremy MAURO <jeremy.mauro@gmail.com>

config.yaml

@@ -1,3 +1,5 @@
+actions:
+  vim-plug: vim +Pluginstall +qall
 config:
   backup: true
   banner: true
@@ -17,6 +19,8 @@ dotfiles:
   f_vimrc:
     src: vimrc
     dst: ~/.vimrc
+    actions:
+    - vim-plug
 profiles:
   Thinkpad-vhdx:
     dotfiles: