Test loading from FLAC
This is a pretty minor merge request that:
- Implements a test to check that
from_wavcan load from FLAC files - Adds a FLAC file example to the test/assets folder
- Expands the docstring of the
from_wavmethod, mentioning that the method can, in fact, load from FLAC, and also adding a TODO to rename the function and documenting this better (future work!) - Update changelog