feat(analyzer): rework analyze_metadata step

- Upgrade mutagen to 1.45.1
- Remove custom wave data extraction
- Add .wav and ogg without extension fixtures
- Move md5 sum and mime type in there own function
- Cleanup comments
- Let analyze_cuepoints handle cuein and cueout metadata
- Remove python magic mime guessing

analyzer/setup.py

@@ -30,9 +30,8 @@ setup(
     },
     python_requires=">=3.6",
     install_requires=[
-        "mutagen>=1.31.0",
+        "mutagen>=1.45.1",
         "pika>=1.0.0",
-        "file-magic",
         "requests>=2.7.0",
         "typing_extensions",
     ],