v1.52.0

nRF52 Changes:

• Allocate internal ADC and DAC buffers dynamically: Users can set the maxBufferSize variable before calling begin() to configure this. The maxBufferSize variable specifies the number of samples NOT bytes
• The useI2S variable can now be set to 1 (I2S DAC), 2 (I2S ADC), or 3 (Both I2S DAC & ADC)
• Add I2S microphone/input support
• Add double-buffering for ADC & PWM - Now smaller buffer sizes can be used with no loss in audio samples
• Allow 24-bit in/out for I2S
• Fix SDIN configuration
• Add example for 24-bit 44kHz I2S in/output
• Smoother transition after disabling DAC or ADC now (Changes to feedDAC and getADC functions)
• Allow config of PDM pins via variables pwrPin, dinPin, clkPin & gain