* New drivers : buzzer/speaker, voice wtv20 / jq6500 , i2c
First commit, testings to be done
* Voice correction
* Better way to drive voice modules
Same thing as LCD drivers
* Issue #2337 (error mismatch) solved
* Font correction
* Fonts correction again
* oups...
* Voice modules (Companion) & flash saving (ST7920)
* Documentation update
* I2C driver correction
* Mega2560 directory renamed to mega2560
* M2560 driver correction
* Voice directory correction
* Voice=ON does not works with MEGA2560 (OFF/WTV20/JQ6500)
* Compliant to cmake documentation
* On M2560, audioAVR use playnumber et playduration declared in voice.h
Don't know why, must be discuted...
* ‘{’ token forgotten
* Simplier way for AVR voice
