Created the teal_types module.
Wrote test module for the teal_types module.
Created the assert_not_record/1 and assert_not_record/2 in the teal_types module.
Wrote test for the not_record/1 functions.
Wrote tests for the assert_not_record/1 and assert_not_record/2 functions.
Updated README.
Added more documentation to README file.