Added contains for the array data type

Author: m-mohr

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
 
 - `patternProperties`, `minProperties` and `maxProperties` for the `object` data type
+- `contains` for the `array` data type
 - `geometryTypes` for the `geometry` data type
 
 ### Changed

README.md

@@ -47,6 +47,7 @@ but it is likely unsupported by the fiboa tooling.
 - `minItems`
 - `maxItems`
 - `uniqueItems`
+- `contains` (sub-schema must be compliant to fiboa Schema)
 
 ### Object data type
 

schema/schema.json

@@ -182,6 +182,9 @@
           "uniqueItems": {
             "type": "boolean",
             "default": false
+          },
+          "contains": {
+            "$ref": "#/$defs/schema"
           }
         }
       }