Refactor/mediator/mediation (use integrated aries-vcx structs) #6491

Job	Run time
aries_vcx_clippy (credx,vdrtools_wallet)	2m 13s
aries_vcx_core_clippy (credx,vdrtools_wallet)	1m 44s
aries_vcx_clippy (vdr_proxy_ledger)	2m 23s
aries_vcx_core_clippy (vdr_proxy_ledger)	3m 20s
verify-code-formatting	16s
workflow-setup	20s
workspace_clippy	5m 21s
code-coverage-aries-vcx-integration-modular-libs	4m 2s
build-docker-vdrproxy	4s
test-integration-aries-vcx	2m 57s
x86_64-unknown-linux-gnu	7m 17s
x86_64-unknown-linux-musl	16m 20s
x86_64-apple-darwin	10m 40s
test-integration-aries-vcx-mysql	2m 42s
aarch64-apple-darwin	41m 3s
test-integration-did-crate	4m 6s
test-integration-libvcx	3m 32s
test-integration-node-wrapper (18.x)	9m 31s
test-unit-workspace	4m 56s
workflow-setup-check	1s
publish-docker-vdrproxy	6s
test-integration-aries-vcx-vdrproxy	4m 56s
make-release	0s
publish-napi	48s
publish-node-wrapper	31s
publish-agent-core	49s
	2h 9m 58s

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