Update shell prompts to use Zsh specific commands

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Import base ZSH configuration

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Improve .shell/aliases to be used with ZSH

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Add ~/.inputrc, do disable Bash bell

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Add Git aliases

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>