Drawio diagrams to aid in wallet architecture discussions

docs/architecture/discussions/diagrams/drawio/digital_identity_ecosystem_roles.drawio.xml

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docs/architecture/discussions/openwallet_conceptual-model.md

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+# Wallet architecture
+The goal is to spark a discussion over a core architecture model for an human-centric digital wallet engine that enables digital trust interactions.
+
+```
+A wallet is a digital software component that performs actions on behalf of and under the control of its holder. 
+
+Credit: Concepts for Secure Wallets in Decentralised Identity Ecosystems[https://nextcloud.idunion.org/s/qPZHPNa8MQJgkDP]
+
+```
+## Three-party digital identity model
+
+### main
+![Three-party digital identity model](https://github.com/Entidad/architecture-sig/blob/main/docs/architecture/discussions/screenshots/Three-party_digital_identity_model.drawio.png)
+
+#### Diagrams inspired by
+1. [AnonCreds Specification / Hyperledger Foundation](https://hyperledger.github.io/anoncreds-spec)
+2. [Verifiable Credentials Data Model v2.0](https://www.w3.org/TR/vc-data-model-2.0/#ecosystem-overview)
+3. [Trust Over IP Model /  Trust Over IP Foundation](https://trustoverip.org/toip-model)
+4. [Concepts for Secure Wallets in Decentralised Identity Ecosystems / IDUnion](https://nextcloud.idunion.org/s/qPZHPNa8MQJgkDP)
+5. [Silicon Valley Innovation Program - Privacy Preserving Digital Credential Wallets & Verifiers / DHS](https://s3.amazonaws.com/uploads.webconnex.com/39818%2F1692286391245-DHS+SVIP+Digital+Wallets+Industry+Day+Presentation.pdf)
+6. [A Trust Layer for the Internet is Emerging](https://www.cira.ca/uploads/2023/12/2023_A-trust-layer-for-the-internet-is-emerging_-report-%E2%80%93-Continuum_CIRA.pdf)
+
+#### Digital identity ecosytem roles
+![Ecosystem roles](https://github.com/Entidad/architecture-sig/blob/main/docs/architecture/discussions/screenshots/digital_identity_ecosystem_roles.drawio.png)
+
+
+#### Wallet interaction modes
+![Wallet interaction modes](https://github.com/Entidad/architecture-sig/blob/main/docs/architecture/discussions/screenshots/digital_trust_interaction_modes.drawio.png)
+
+#### Wallet app system architecture
+![OpenWallet system architecture](https://github.com/Entidad/architecture-sig/blob/main/docs/architecture/discussions/screenshots/Native_wallet_app.drawio.png)