Un-bundle single-vocabulary meta-schemas.

This seems to work (thanks @FFY00), even though
previously I thought I was having issues with
importlib.resources. Let's see if CI agrees.

jsonschema/schemas/vocabularies/draft2019-09/applicator

@@ -0,0 +1,56 @@
+{
+    "$schema": "https://json-schema.org/draft/2019-09/schema",
+    "$id": "https://json-schema.org/draft/2019-09/meta/applicator",
+    "$vocabulary": {
+        "https://json-schema.org/draft/2019-09/vocab/applicator": true
+    },
+    "$recursiveAnchor": true,
+
+    "title": "Applicator vocabulary meta-schema",
+    "type": ["object", "boolean"],
+    "properties": {
+        "additionalItems": { "$recursiveRef": "#" },
+        "unevaluatedItems": { "$recursiveRef": "#" },
+        "items": {
+            "anyOf": [
+                { "$recursiveRef": "#" },
+                { "$ref": "#/$defs/schemaArray" }
+            ]
+        },
+        "contains": { "$recursiveRef": "#" },
+        "additionalProperties": { "$recursiveRef": "#" },
+        "unevaluatedProperties": { "$recursiveRef": "#" },
+        "properties": {
+            "type": "object",
+            "additionalProperties": { "$recursiveRef": "#" },
+            "default": {}
+        },
+        "patternProperties": {
+            "type": "object",
+            "additionalProperties": { "$recursiveRef": "#" },
+            "propertyNames": { "format": "regex" },
+            "default": {}
+        },
+        "dependentSchemas": {
+            "type": "object",
+            "additionalProperties": {
+                "$recursiveRef": "#"
+            }
+        },
+        "propertyNames": { "$recursiveRef": "#" },
+        "if": { "$recursiveRef": "#" },
+        "then": { "$recursiveRef": "#" },
+        "else": { "$recursiveRef": "#" },
+        "allOf": { "$ref": "#/$defs/schemaArray" },
+        "anyOf": { "$ref": "#/$defs/schemaArray" },
+        "oneOf": { "$ref": "#/$defs/schemaArray" },
+        "not": { "$recursiveRef": "#" }
+    },
+    "$defs": {
+        "schemaArray": {
+            "type": "array",
+            "minItems": 1,
+            "items": { "$recursiveRef": "#" }
+        }
+    }
+}

jsonschema/schemas/vocabularies/draft2019-09/content

@@ -0,0 +1,17 @@
+{
+    "$schema": "https://json-schema.org/draft/2019-09/schema",
+    "$id": "https://json-schema.org/draft/2019-09/meta/content",
+    "$vocabulary": {
+        "https://json-schema.org/draft/2019-09/vocab/content": true
+    },
+    "$recursiveAnchor": true,
+
+    "title": "Content vocabulary meta-schema",
+
+    "type": ["object", "boolean"],
+    "properties": {
+        "contentMediaType": { "type": "string" },
+        "contentEncoding": { "type": "string" },
+        "contentSchema": { "$recursiveRef": "#" }
+    }
+}

jsonschema/schemas/vocabularies/draft2019-09/core

@@ -0,0 +1,57 @@
+{
+    "$schema": "https://json-schema.org/draft/2019-09/schema",
+    "$id": "https://json-schema.org/draft/2019-09/meta/core",
+    "$vocabulary": {
+        "https://json-schema.org/draft/2019-09/vocab/core": true
+    },
+    "$recursiveAnchor": true,
+
+    "title": "Core vocabulary meta-schema",
+    "type": ["object", "boolean"],
+    "properties": {
+        "$id": {
+            "type": "string",
+            "format": "uri-reference",
+            "$comment": "Non-empty fragments not allowed.",
+            "pattern": "^[^#]*#?$"
+        },
+        "$schema": {
+            "type": "string",
+            "format": "uri"
+        },
+        "$anchor": {
+            "type": "string",
+            "pattern": "^[A-Za-z][-A-Za-z0-9.:_]*$"
+        },
+        "$ref": {
+            "type": "string",
+            "format": "uri-reference"
+        },
+        "$recursiveRef": {
+            "type": "string",
+            "format": "uri-reference"
+        },
+        "$recursiveAnchor": {
+            "type": "boolean",
+            "default": false
+        },
+        "$vocabulary": {
+            "type": "object",
+            "propertyNames": {
+                "type": "string",
+                "format": "uri"
+            },
+            "additionalProperties": {
+                "type": "boolean"
+            }
+        },
+        "$comment": {
+            "type": "string"
+        },
+        "$defs": {
+            "type": "object",
+            "additionalProperties": { "$recursiveRef": "#" },
+            "default": {}
+        }
+    }
+}

jsonschema/schemas/vocabularies/draft2019-09/meta-data

@@ -0,0 +1,37 @@
+{
+    "$schema": "https://json-schema.org/draft/2019-09/schema",
+    "$id": "https://json-schema.org/draft/2019-09/meta/meta-data",
+    "$vocabulary": {
+        "https://json-schema.org/draft/2019-09/vocab/meta-data": true
+    },
+    "$recursiveAnchor": true,
+
+    "title": "Meta-data vocabulary meta-schema",
+
+    "type": ["object", "boolean"],
+    "properties": {
+        "title": {
+            "type": "string"
+        },
+        "description": {
+            "type": "string"
+        },
+        "default": true,
+        "deprecated": {
+            "type": "boolean",
+            "default": false
+        },
+        "readOnly": {
+            "type": "boolean",
+            "default": false
+        },
+        "writeOnly": {
+            "type": "boolean",
+            "default": false
+        },
+        "examples": {
+            "type": "array",
+            "items": true
+        }
+    }
+}