extract check format from response validator
check_format raises an InvalidFormat error
extract check_format from param validator
extract check_type from response validator
check_type raises InvalidType
check_type mimics params validator behavior
remove check_type from param validator
extract check_pattern from param validator
extract check_pattern from response validator
create test data

- update schema with pointer to flag
- create a ValidAccount
add support for arrays in response validator
support a descriptive list title

- works with "List"
- works with "List of Jobs"
- works with "Jobs List"