Add missing CLI commands

[oberstet]

Add missing CLI commands:

• [ ] ${CROSSBAR} shell show mrealm
• [ ] ${CROSSBAR} shell --realm default show role
• [ ] ${CROSSBAR} shell --realm default list role-permissions swarm_device --names
• [ ] ${CROSSBAR} shell --realm default show role-permission swarm_device
• [ ] ${CROSSBAR} shell --realm default list webcluster-services cluster1 --names
• [ ] ${CROSSBAR} shell --realm default show webcluster-service cluster1
• [ ] ${CROSSBAR} shell --realm default show routercluster-workergroup cluster2
• [ ] ${CROSSBAR} shell --realm default list routercluster-workers cluster2 group1
• [ ] ${CROSSBAR} shell --realm default list routercluster-workers cluster2 group1 --names
• [ ] ${CROSSBAR} shell --realm default show routercluster-worker cluster2 group1 group1_1
• [ ] ${CROSSBAR} shell --realm default show routercluster-worker cluster2 group1
• [ ] ${CROSSBAR} shell --realm default show arealm-role realm1

---

Add new CLI command: crossbar shell --realm default show routercluster-workergroup-placement cluster2 group1

crossbar shell --realm default show --help

Usage: crossbar show [OPTIONS] COMMAND [ARGS]...

  show resources

Options:
  --help  Show this message and exit.

Commands:
  arealm                     show application realm
  arealm-role                show arealm-role association
  component                  show component (for container and router...
  database                   open and show embedded database details
  docker                     show Docker information
  docker-container           show Docker container information
  docker-image               show Docker image information
  fabric                     show fabric
  license                    get domain software stack license
  mrealm                     show management realm (for domains)
  node                       show node
  principal                  show principal
  realm                      show realm (for router workers)
  role                       show role
  role-permission            show role permission
  routercluster              show routercluster
  routercluster-node         show routercluster node
  routercluster-workergroup  show routercluster workergroup
  status                     show domain or mrealm status
  transport                  show transport (for router workers)
  version                    get domain controller software version
  webcluster                 show webcluster
  webcluster-node            show webcluster node
  webcluster-service         show webcluster webservice
  worker                     show worker

[oberstet]

orchestration API - delete_ / remove_:

• [x] remove_routercluster_node
• [x] remove_routercluster_workergroup
• [x] remove_webcluster_node
• [x] remove_webcluster_service
• [x] remove_arealm_role
• [x] remove_role_permission
• [ ] remove_principal
• [ ] remove_principal_credential
• [x] delete_routercluster
• [x] delete_webcluster
• [x] delete_arealm
• [x] delete_role
• [ ] delete_mrealm
• [x] delete_mrealm_by_name
• [ ] delete_node
• [ ] delete_organization
• [ ] delete_docs
• [ ] delete_trace