#1 Migrate TRAIN BDD Testkit

use https for reference submodules

.gitmodules

 [submodule "implementations/ocm"]
 	path = implementations/ocm
-	url = git@gitlab.eclipse.org:eclipse/xfsc/ocm/bdd.git
+	url = https://gitlab.eclipse.org:eclipse/xfsc/ocm/bdd.git
 	branch = ocm-1-bdd-framework-migrate-train-bdd-testkit-2
 [submodule "implementations/ocm-w"]
 	path = implementations/ocm-w
-	url = git@gitlab.eclipse.org:eclipse/xfsc/organisational-credential-manager-w-stack/bdd.git
+	url = https://gitlab.eclipse.org:eclipse/xfsc/organisational-credential-manager-w-stack/bdd.git
 [submodule "implementations/train"]
 	path = implementations/train
-	url = git@gitlab.eclipse.org:eclipse/xfsc/train/BDD.git
+	url = https://gitlab.eclipse.org/eclipse/xfsc/train/BDD.git
+	branch = main

src/eu/xfsc/bdd/core/environment.py

 # see https://behave.readthedocs.io/en/stable/tutorial.html#environmental-controls
+PROD = 'PROD'
+STAGING = 'STAGING'
+