Support VAD filter (#95)

* Support VAD filter

* Generalize function collect_samples

* Define AudioSegment class

* Only pass prompt and prefix to the first chunk

* Add dict argument vad_parameters

* Fix isort format

* Rename method

* Update README

* Add shortcut when the chunk offset is 0

* Reword readme

* Fix end property

* Concatenate the speech chunks

* Cleanup diff

* Increase default speech pad

* Update README

* Increase default speech pad

setup.py

@@ -56,4 +56,5 @@ setup(
         ],
     },
     packages=find_packages(),
+    include_package_data=True,
 )