Add Emacs reset script

emacs/.gitignore

@@ -2,7 +2,8 @@
 !.gitignore
 !*.org
 !*.el
+!reset.sh
 !.gitkeep
 !snippets/
 !snippets/**
-flycheck_init.el
+flycheck_init.el

emacs/reset.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+SCRIPT_DIR=$(dirname "$(readlink -f "$0")")
+
+pushd $SCRIPT_DIR &>/dev/null && rm -rf eln-cache elpa elpaca elpaca.lock && popd &> /dev/null