Implement canonical schema foundation

examples/caring/policy_package.yaml

@@ -0,0 +1,29 @@
+id: markitect.documents.internal-read
+name: Markitect internal document read
+version: v1
+status: draft
+package: flexauth.markitect.documents
+caring:
+  profile: caring-0.4.0-rc2
+  canonical_roles:
+    - Doer
+  organization_relations:
+    - Customer
+  scopes:
+    - level: Resource
+      id: document:internal-note
+      tenant: tenant:alpha
+  planes:
+    - Data
+  capabilities:
+    - View
+  exposure_modes:
+    - Masked
+    - Plaintext
+  conditions:
+    - PurposeBound
+    - Logged
+  restrictions:
+    - ExportBlocked
+metadata:
+  source: examples/caring