fix(did_parser): Add readme and simple example (#1047) (#1051) #61

Job	Run time
aries_vcx_core_clippy (credx,vdrtools_wallet)	9m 58s
aries_vcx_clippy (credx,vdrtools_wallet)	4m 3s
verify-code-formatting	29s
aries_vcx_core_clippy (vdr_proxy_ledger)	1m 56s
aries_vcx_clippy (vdr_proxy_ledger)	5m 31s
workflow-setup	29s
workspace_clippy	6m 42s
workflow-setup-check	2s
test-unit-workspace	4m 35s
build-docker-vdrproxy	7m 29s
code-coverage-aries-vcx-integration-modular-libs	6m 1s
x86_64-unknown-linux-gnu	6m 46s
test-integration-aries-vcx	6m 46s
x86_64-unknown-linux-musl	31m 38s
test-integration-aries-vcx-mysql	8m 33s
x86_64-apple-darwin	9m 20s
test-integration-libvcx	6m 32s
aarch64-apple-darwin	35m 36s
test-integration-did-crate	6m 55s
test-integration-node-wrapper (18.x)	13m 55s
test-integration-aries-vcx-vdrproxy	4m 55s
publish-docker-vdrproxy	6s
make-release	44s
publish-napi	21s
publish-node-wrapper	0s
publish-agent-core	0s
	2h 59m 22s

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