Updates

• Changed a bit of logic so .asm extension always triggers language detection based on file type so it results in Assembly
• Replace inline detection in heartbeat_ingest.rb with fill_misisng_languages call for consistency
• Updates tests

So as the pr explains
I added a merge for .asm files to log as Assembly time instead of the bunch of random things it does instead.

Also implemented a test but did not commit it incase it was not needed