Add fetch and install scripts

- Add fetch script which fetches the current config that is used by the
  system into the git repo
- Add install script which copies the config in the repo into the config
  folder for the user
- Add waybar as config

fetch.sh

@@ -0,0 +1,12 @@
+fetch() {
+    path=$1
+    name=$2
+    rm -rf $name
+    cp -r $path $name
+}
+
+while read name path; do
+    eval "name=$name" # re-evaluate the string as a path
+    eval "path=$path" # re-evaluate the string as a path
+    fetch $path $name
+done <configs