Add .env.example

Author: TristanDamron

.env.example

@@ -0,0 +1,6 @@
+export GEOCML_POSTGRES_PASSWORD=XXXXXXX
+export GEOCML_POSTGRES_ADMIN_PASSWORD=XXXXXXX
+export GEOCML_DESKTOP_PASSWORD=XXXXXXX
+export DRGON_HOST=XXXXXXX  # Optional; only required if you are registering your deployment publicly on a DRGON instance
+export DRGON_API_KEY=XXXXXXX  # Optional; only required if you are registering your deployment publicly on a DRGON instance
+export GEOCML_DEPLOYMENT_HOST=XXXXXXX  # Optional; only required if you are hosting your deployment publicly