Add mediator coordination messages to aries-vcx messages crate #6480

Job	Run time
verify-code-formatting	15s
workflow-setup	19s
aries_vcx_clippy (credx,vdrtools_wallet)	4m 32s
aries_vcx_core_clippy (credx,vdrtools_wallet)	2m 39s
aries_vcx_clippy (vdr_proxy_ledger)	5m 17s
aries_vcx_core_clippy (vdr_proxy_ledger)	1m 53s
workspace_clippy	6m 49s
build-docker-vdrproxy	7s
code-coverage-aries-vcx-integration-modular-libs	5m 51s
test-integration-aries-vcx	5m 1s
x86_64-unknown-linux-gnu	5m 49s
x86_64-unknown-linux-musl	9m 54s
test-integration-aries-vcx-mysql	2m 18s
x86_64-apple-darwin	7m 22s
test-integration-did-crate	3m 4s
test-integration-libvcx	1m 37s
aarch64-apple-darwin	38m 52s
test-integration-node-wrapper (18.x)	5m 54s
test-unit-workspace	1m 36s
workflow-setup-check	3s
test-integration-aries-vcx-vdrproxy	5m 18s
publish-docker-vdrproxy	14s
make-release	0s
publish-napi	0s
publish-node-wrapper	0s
publish-agent-core	0s
	1h 54m 44s

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