Revert "removed field instance og_membership-og_membership_type_default-og_membership_request - it causes a duplicate"

This reverts commit f983ecc1169f807aac8a06f42e4a2697ec784666.
Revert "added field instances og_membership-og_membership_type_default-og_membership_request user-user-og_user_node to allow user to visualize own groups in user profile"

This reverts commit 34d671d985378905aa69e50ce7d7339bb89a270b.