bash: Add shorthands to mount client-side encrypted NAS directories

bash/.bashrc

@@ -157,3 +157,11 @@ function clamp_filename() {
     fi
   done
 }
+
+function open_nas_decrypt() {
+  gocryptfs -passfile /dev/stdin "$MACHINE_NAS_CIPHER_PATH" "$MACHINE_NAS_DECRYPT_PATH" <<< "$(pass gocrypt show "$MACHINE_NAS_CIPHER_PASS")"
+}
+
+function close_nas_decrypt() {
+  fusermount -u "$MACHINE_NAS_DECRYPT_PATH"
+}