Get Relationship by RelationshipId
| id | RR3 |
| layer | Transport |
| facade | RelationshipsFacade |
| function | getRelationship |
| feature category | Mutual peer-to-peer relationships |
| tech category | Relationships |
| status | DONE |
| actor | Identity |
| component | Runtime |
| priority | n/a |
| complexity | n/a |
| size | n/a |
| published | default |