archivesunleashed/aut

- Add Audio & Video binary extraction.
- Add filename, and extenstion column to audio, pdf, and video DF
- Pass binary bytes instread of string to DetectMimeTypeTika in DF (s/getContentString/getBinaryBytes)
- Updates saveToDisk to use file extension from DF column
- Adds tests for Audio, PDF, and Video DF extraction
- Add test fixtures for Audio, PDF, and Video DF extraction
- Rename SaveBytesTest to SaveImageBytes test
- Eliminate bytes->string->bytes conversion that was causing data loss in DetectMimeTypeTika
- Update tika-parsers dep from JitPack
- Remove tweet cruft
- Resolves #306
- Resolves #307
- Includes work by @jrwiebe, see #341 for all commits before squash