fix(did_parser): Add readme and simple example (#1047) #6465

Job	Run time
aries_vcx_core_clippy (credx,vdrtools_wallet)	2m 53s
aries_vcx_clippy (credx,vdrtools_wallet)	3m 38s
aries_vcx_core_clippy (vdr_proxy_ledger)	2m 3s
verify-code-formatting	25s
workflow-setup	31s
aries_vcx_clippy (vdr_proxy_ledger)	2m 20s
workspace_clippy	3m 33s
build-docker-vdrproxy	7m 5s
code-coverage-aries-vcx-integration-modular-libs	6m 34s
test-integration-aries-vcx	4m 27s
x86_64-unknown-linux-gnu	5m 3s
test-integration-aries-vcx-mysql	4m 21s
test-integration-did-crate	3m 54s
test-integration-libvcx	9m 24s
x86_64-unknown-linux-musl	27m 51s
test-integration-node-wrapper (18.x)	14m 12s
x86_64-apple-darwin	8m 38s
test-unit-workspace	3m 56s
aarch64-apple-darwin	20m 12s
workflow-setup-check	1s
test-integration-aries-vcx-vdrproxy	9m 32s
publish-docker-vdrproxy	2s
make-release	0s
publish-napi	0s
publish-node-wrapper	0s
publish-agent-core	0s
	2h 20m 35s

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