Added dot-env plugin

Dot-env is a cross-platform, cascading Zsh environment system for those who work on different hardware and OS environments.

See: https://github.com/midwire/.env

plugins/dot-env/global/alias/git.sh

@@ -0,0 +1,12 @@
+# Git aliases
+alias add='git add'
+alias branch='git branch'
+alias co='git checkout'
+alias commit='git commit'
+alias fetch='git fetch'
+alias gadd='git add .'
+alias gt='gittower'
+alias merge='git merge'
+alias pull='git pull'
+alias push='git push'
+alias st='git status'