Split the dialect and meta-schema.

Allows for better re-use.

Author: Julian

dialect.json

@@ -0,0 +1,21 @@
+{
+    "$id": "https://python-jsonschema.github.io/vocab-json-seq/dialect.json",
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "$vocabulary": {
+        "https://json-schema.org/draft/2020-12/vocab/core": true,
+        "https://json-schema.org/draft/2020-12/vocab/applicator": true,
+        "https://json-schema.org/draft/2020-12/vocab/unevaluated": true,
+        "https://json-schema.org/draft/2020-12/vocab/validation": true,
+        "https://json-schema.org/draft/2020-12/vocab/meta-data": true,
+        "https://json-schema.org/draft/2020-12/vocab/format-annotation": true,
+        "https://json-schema.org/draft/2020-12/vocab/content": true,
+        "https://python-jsonschema.github.io/vocab-json-seq/": true
+    },
+    "$dynamicAnchor": "meta",
+
+    "title": "A JSON Text Sequence vocabulary for JSON Schema",
+    "allOf": [
+        { "$ref": "https://json-schema.org/draft/2020-12/schema" },
+        { "$ref": "https://python-jsonschema.github.io/vocab-json-seq/meta.json" }
+    ]
+}

meta.json

@@ -2,19 +2,11 @@
     "$id": "https://python-jsonschema.github.io/vocab-json-seq/meta.json",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "$vocabulary": {
-        "https://json-schema.org/draft/2020-12/vocab/core": true,
-        "https://json-schema.org/draft/2020-12/vocab/applicator": true,
-        "https://json-schema.org/draft/2020-12/vocab/validation": true,
-        "https://json-schema.org/draft/2020-12/vocab/meta-data": true,
-        "https://json-schema.org/draft/2020-12/vocab/format-annotation": true,
         "https://python-jsonschema.github.io/vocab-json-seq/": true
     },
     "$dynamicAnchor": "meta",
 
     "title": "A JSON Text Sequence vocabulary for JSON Schema",
-    "allOf": [
-        { "$ref": "https://json-schema.org/draft/2020-12/schema" }
-    ],
     "properties": {
         "streamType": {
             "description": "Validates whether an instance is a stream",