Read metadata from WAV files

**Shuttle version:**
 
 v2.0.17
 
**Device, OS:**
 
Android 10

**Description of bug:**
 
WAV file metadata isn't read
 
**Steps to reproduce:**
 
 1. Put a WAV file on phone
 2. Look at it in Shuttle
 
**Expected outcome:**
 
Should show the Artist etc information from the ID3 chunk.
 
**Observations/Actual Result:**
 
WAV files have Artist, etc listed as `<unknown>`