fix(did_parser): Add readme and simple example (#1047) #6482

Job	Run time
workflow-setup	21s
aries_vcx_core_clippy (credx,vdrtools_wallet)	2m 52s
aries_vcx_clippy (credx,vdrtools_wallet)	4m 18s
verify-code-formatting	17s
aries_vcx_core_clippy (vdr_proxy_ledger)	2m 59s
aries_vcx_clippy (vdr_proxy_ledger)	2m 22s
workspace_clippy	3m 18s
build-docker-vdrproxy	10s
code-coverage-aries-vcx-integration-modular-libs	6m 43s
test-integration-aries-vcx	5m 41s
x86_64-unknown-linux-gnu	2m 45s
x86_64-unknown-linux-musl	11m 5s
test-integration-aries-vcx-mysql	2m 21s
x86_64-apple-darwin	5m 51s
test-integration-libvcx	2m 57s
test-integration-did-crate	1m 54s
aarch64-apple-darwin	30m 18s
test-integration-node-wrapper (18.x)	7m 49s
workflow-setup-check	3s
test-unit-workspace	1m 47s
test-integration-aries-vcx-vdrproxy	2m 15s
publish-docker-vdrproxy	1s
make-release	0s
publish-napi	0s
publish-node-wrapper	0s
publish-agent-core	0s
	1h 38m 7s

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