Add .env.dist file to help with forking

Saves having to deduce what variable names I've used from the source
code.

.env.dist

@@ -0,0 +1,7 @@
+AUTHORIZE_URL="https://welcome-dev.electrickiwi.co.nz/oauth/authorize"
+TOKEN_URL="https://welcome-dev.electrickiwi.co.nz/oauth/token"
+API_URL="https://api-dev.electrickiwi.co.nz/"
+REDIRECT_URI="https://ek.pointy.nz"
+SCOPES="read_hop_intervals_config read_hop_connection save_hop_connection read_session"
+CLIENT_ID="..."
+CLIENT_SECRET="..."