Make hl7-reader read HL7 from text files

[jeremyestein]

Compressed or uncompressed HL7 dumps will be useful for testing and validation, so it needs to be able to read from one.

[Asif-Healthcare]

To test and validate HL7 message dumps, you can handle both compressed and uncompressed files. For uncompressed HL7, use libraries like hl7apy (Python) or HAPI HL7 (Java) to read and parse the messages. For compressed dumps, decompress first using tools like gzip or zipfile, then process the HL7 content. Mirth Connect can also handle both formats for validation by setting up a channel to read, decompress if needed, and validate the messages.