Update version to 2.3.1 in pyproject.toml and add data file properties validation in RuleValidator

Author: JoshuaHarris391

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "Gen3SchemaDev"
-version = "2.3.0"
+version = "2.3.1"
 description = "Tool for data modelling in Gen3"
 authors = [
     {name = "JoshuaHarris391",email = "[email protected]"}

src/gen3schemadev/validators/rule_validator.py

@@ -16,6 +16,7 @@ def validate(self):
         self.props_must_have_type()
         self.type_array_needs_items()
         self.core_metadata_required_link()
+        self.data_file_props_need_data_props()
 
     def _get_links(self):
         links = self.schema.get("links", [])