v0.6.5

This release allows testing with Voice Channels.

New :

• FakeVoiceChannel and FakeVoiceClient classes implemetation
• New tests

Changes :

• create_channel method can create voice channel

⚠️ Warning ⚠️:

This can be breaking :

the configure() function DOESN'T take the keyword parameter num_channels anymore, but instead :
num_text_channels and num_voice_channels