add CODEOWNERS file for the docs

Author: OskarStark

.github/CODEOWNERS

@@ -0,0 +1,20 @@
+# Form
+/components/form* @xabbuh
+
+# PropertyInfo
+/components/property_info* @dunglas
+
+# Security
+/security* @chalasr
+/components/security* @chalasr
+
+# Validator
+/validation/*
+/components/validator* @xabbuh
+
+# Workflow
+/workflow* @lyrixx
+/components/workflow* @lyrixx
+
+# Yaml
+/components/yaml* @xabbuh