Refactor/mediator/mediation (use integrated aries-vcx structs) #6490

Job	Run time
aries_vcx_core_clippy (credx,vdrtools_wallet)	2m 6s
verify-code-formatting	13s
aries_vcx_clippy (credx,vdrtools_wallet)	2m 13s
aries_vcx_core_clippy (vdr_proxy_ledger)	3m 42s
workflow-setup	26s
aries_vcx_clippy (vdr_proxy_ledger)	3m 55s
workspace_clippy	5m 6s
code-coverage-aries-vcx-integration-modular-libs	7m 13s
build-docker-vdrproxy	5s
test-integration-aries-vcx	11m 54s
x86_64-unknown-linux-gnu	3m 37s
x86_64-unknown-linux-musl	7m 30s
x86_64-apple-darwin	9m 18s
test-integration-aries-vcx-mysql	3m 4s
aarch64-apple-darwin	34m 46s
test-integration-libvcx	2m 36s
test-integration-did-crate	2m 29s
test-integration-node-wrapper (18.x)	3m 33s
workflow-setup-check	2s
test-unit-workspace	2m 54s
publish-docker-vdrproxy	11s
test-integration-aries-vcx-vdrproxy	12m 3s
make-release	0s
publish-napi	0s
publish-node-wrapper	0s
publish-agent-core	0s
	1h 58m 56s

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