Add trigger and step submodules

- step/makeinvisible
- step/adminapprove
- trigger/customfielddelay
- trigger/byrole
- trigger/semindependent
- trigger/customfieldsemester

.gitmodules

+[submodule "step/makeinvisible"]
+	path = step/makeinvisible
+	url = https://github.com/learnweb/moodle-lifecyclestep_makeinvisible.git
+[submodule "step/adminapprove"]
+	path = step/adminapprove
+	url = https://github.com/learnweb/moodle-lifecyclestep_adminapprove.git
+[submodule "trigger/customfielddelay"]
+	path = trigger/customfielddelay
+	url = https://github.com/learnweb/moodle-lifecycletrigger_customfielddelay.git
+[submodule "trigger/byrole"]
+	path = trigger/byrole
+	url = https://github.com/learnweb/moodle-lifecycletrigger_byrole.git
+[submodule "trigger/semindependent"]
+	path = trigger/semindependent
+	url = https://github.com/learnweb/moodle-lifecycletrigger_semindependent.git
+[submodule "trigger/customfieldsemester"]
+	path = trigger/customfieldsemester
+	url = https://github.com/hsh-elc/moodle-lifecycletrigger_customfieldsemester.git

adminapprove @ b235f475

+Subproject commit b235f475e52d5c48f9033b65ea6923fae7998a99

makeinvisible @ 962bbe72

+Subproject commit 962bbe725972294a3ce9b1a1ef455c611872e255

byrole @ f7975137

+Subproject commit f79751371cebe814e285faf8d0edebd2f49a566f

customfielddelay @ a7ba6971

+Subproject commit a7ba69715e029da850764399913c6f645a504183

customfieldsemester @ 17207720

+Subproject commit 1720772038a6344e39c665c66261b477ce797afa

semindependent @ 0ceb6cad

+Subproject commit 0ceb6cad4caddfc77efc9795952c03fd43a6ec2b