Large Sample Test Data Files for Tab Delimited and HL7

**Is your feature request related to a problem? Please describe.**
Add large sample test data

**Describe the solution you'd like**
Create test data files containing more than 1000 records for testing in both HL7 and Tab Delimited Format
Add unit tests to validate all sample data file content.

**Describe alternatives you've considered**
None

**Additional context**
