New Functionality & Error Corrections

I haven't published a new release for quite some time.

Here is the content:

• New raw_stream_reader callback to provide data before volume is applied. Thanks to ArthurKoba
• Remove warnings, fix failing examples, Github Action to auto compile. Thanks to designer2k2
• Task Shutdown on Sink::end(). Thanks to rbuehlma
• New set_ssid_callback() method to select unknown ssid dynamically
• Added missing #pragma once guards to BluetoothA2DPSinkQueued.h
• (Re)Added support for obsolete Channels, so that old examples copied from the Web still compile
• prevent i2s_write if i2s was not started
• Support for include "I2S.h"
• Create compile error for S3
• Move set_event_queue_size (int size) and set_event_stack_size (int size) to common; increase values for source
• Class Documentation using modules