Fix WAV regression tests across backends
Add native macOS WAV support
Fix distcheck test data paths
Updates to reflect gitsubtree migration for FuseImporter
Point fuse submodule to GitHub and update revision
Merge commit '8539eabae0028a2bcd496fd562f4dec1b82d4f2f' as 'FuseImporter'
Squashed 'FuseImporter/' content from commit 72a7925
Remove FuseImporter submodule