v1.2.1

• Added CollectionComparisonOperator as default comparison operator for array and enums
• Added support to use custom namespaces for queries and mutations
• Added support to use alias to customize name for namespaced operations
• Allow set custom type name and description for mutations input argument
• Added plural in constraint violation error for pluralizing the violation message
• Fixed check only forbidden type if the operation does not have any endpoint configured
• Added behat step to verify GraphQL error code
• Added behat step to verify not existing row in table
• Added support to use endpoints and others options in arguments
• minors bugs fixed