Add plantuml diagrams

Signed-off-by: George J Padayatti <george.padayatti@igrant.io>

architecture/consent.puml

@@ -0,0 +1,27 @@
+@startuml Consent
+@startjson
+{
+    "@context": [
+    "https://raw.githubusercontent.com/decentralised-dataexchange/data-exchange-agreements/main/interface-specs/jsonld/contexts/dexa-context.jsonld",
+    "https://w3id.org/security/v2"
+    ],
+    "@id": "urn:uuid:consent-id",
+    "@type": [
+    "Consent"
+    ],
+    "permission": "<allow/disallow>",
+    "dataSourceId": "urn:uuid:data-source-id",
+    "dataUsingServiceId": "urn:uuid:data-using-service-id",
+    "dataAttributeId": "urn:uuid:data-attribute-id",
+    "dataAgreementId": "urn:uuid:data-agreement-id",
+    "proof": {
+        "type": "Ed25519Signature2018",
+        "created": "2017-06-18T21:19:10Z",
+        "verificationMethod": "did:key:abc",
+        "proofPurpose": "authentication",
+        "proofValue": "x.y.z"
+    }
+}
+@endjson
+
+@enduml

architecture/data_agreement.puml

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+@startuml "Data agreement"
+
+@startjson
+{
+    "@context": [
+    "https://raw.githubusercontent.com/decentralised-dataexchange/data-exchange-agreements/main/interface-specs/jsonld/contexts/dexa-context.jsonld",
+    "https://w3id.org/security/v2"
+    ],
+    "@id": "urn:uuid:xyz",
+    "@type": [
+    "DataAgreement"
+    ],
+    "language": "en",
+    "version": "0.0.1",
+    "templateId": "urn:uuid:abc",
+    "templateVersion": "0.0.1",
+    "dataControllerName": "Happy Shopping AB",
+    "dataControllerUrl": "https://www.happyshopping.com",
+    "dataPolicy": {
+        "policyUrl": "https://happyshoping.com/privacy-policy/",
+        "jurisdiction": "Sweden",
+        "industrySector": "Retail",
+        "dataRetentionPeriod": 30,
+        "geographicRestriction": "Europe",
+        "storageLocation": "Europe",
+        "thirdPartyDataSharing": false
+    }
+    ,
+    "purpose": "Customized shopping experience",
+    "purposeDescription": "Collecting user data for offering custom tailored shopping experience",
+    "lawfulBasis": "consent",
+    "methodOfUse": "data-using-service",
+    "personalData": [
+    "urn:uuid:data-attribute-id-1",
+    "urn:uuid:data-attribute-id-2"
+    ],
+    "dpia": {
+        "dpiaDate": "2021-05-08T08:41:59+0000",
+        "dpiaSummaryUrl": "https://org.com/dpia_results.html"
+    }
+    ,
+    "proofChain": [
+    {
+        "id": "did:key:z6MkiTBz1ymuepAQ4HEHYSF1H8quG5GLVVQR3djdX3mDooWp#1",
+        "type": "Ed25519Signature2020",
+        "created": "2021-05-08T08:41:59+0000",
+        "verificationMethod": "did:key:z6MkiTBz1ymuepAQ4HEHYSF1H8quG5GLVVQR3djdX3mDooWp",
+        "proofPurpose": "contractAgreement",
+        "proofValue": "z6MkwW6aqMnjgrhJXFUko3NnZPGzVpkNzhYK7yEhnsibmLwLz6MkwW6aqMnjgrhJXFUko3NnZPGzVpkNzhYK7yEhnsibmLwL"
+    }
+    ],
+    "dataSubjectDid": "did:mydata:z6MkGskxnGjLrk3gKS2mesDpuwRBokeWcmrgHxUXfnncxiZP"
+}
+@endjson
+

architecture/personal_data.puml

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+@startuml "Personal data"
+
+@startjson
+{
+    "@context": [
+    "https://raw.githubusercontent.com/decentralised-dataexchange/data-exchange-agreements/main/interface-specs/jsonld/contexts/dexa-context.jsonld",
+    "https://w3id.org/security/v2"
+    ],
+    "@id": "urn:uuid:data-attribute-id",
+    "@type": [
+    "DataAttribute"
+    ],
+    "dataSourceId": "urn:uuid:data-source-id",
+    "attributeId": "f216cb1-aedb-571e-46f7-2fef51dedb54",
+    "attributeName": "Name",
+    "attributeSensitive": true,
+    "attributeCategory": "Name",
+    "attributeDescription": "Name of the individual",
+    "proof": {
+        "type": "Ed25519Signature2018",
+        "created": "2017-06-18T21:19:10Z",
+        "verificationMethod": "did:key:abc",
+        "proofPurpose": "authentication",
+        "proofValue": "x.y.z"
+    }
+}
+@endjson