feat: allow dot as separator in resource id

Signed-off-by: Ben Meier <[email protected]>

samples/score-full.yaml

@@ -70,6 +70,6 @@ resources:
         data: here
   resource-two2:
     type: Resource-Two
-  resource-three:
+  resource.three:
     type: Type-Three
     id: shared-type-three

score-v1b1.json

@@ -144,11 +144,11 @@
           "pattern": "^[A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9]$"
         },
         "id": {
-          "description": "An optional external Resource identifier. When two resources share the same type, class, and id, they are considered the same resource when used across related Workloads. The id must be a valid RFC1123 Label Name of up to 63 characters, including a-z, 0-9, '-' but may not start or end with '-'.",
+          "description": "An optional Resource identifier. When two resources share the same type, class, and id, they are considered the same resource when used across related Workloads. The id may be up to 63 characters, including a-z, 0-9, '-' or '.' but may not start or end with '-' or '.'.",
           "type": "string",
           "minLength": 2,
           "maxLength": 63,
-          "pattern": "^[a-z0-9][a-z0-9-]{0,61}[a-z0-9]$"
+          "pattern": "^[a-z0-9][a-z0-9-.]{0,61}[a-z0-9]$"
         },
         "metadata": {
           "description": "The metadata for the Resource.",