Separating __init__.py into multiple files

[mattgwwalker]

Hi Zuzu-Typ,

Would you be open to having __init__.py separated into a number of files, say one file per class?

As it stands, it's a challenge for me to separate the work I do as everything is connected to the one file.

I'm happy to make the changes if you're happy to accept them.

Cheers,

Matthew

[mattgwwalker]

The Opus-related classes have been split out of __init__.py.

The Vorbis and FLAC classes should also be split out, but before we do that, we should create tests to ensure their correct functionality after the split.

[mattgwwalker]

The Vorbis related classes have been split from __init__.py. Examples and tests have been added. (See #49.)

Only the FLAC classes remain to be split. Examples and tests are required.

[mattgwwalker]

FLAC classes have been split and tests have been added (see pull request #58).

Examples need to be written and added to the documentation. I'll leave this issue open as a reminder.