espressif/arduino-esp32 1.0.1-rc4

Prerelease for 1.0.1

on GitHub

Includes a fix for log_printf and fix for compile issues on Windows

Commits

• b0582e1 Fix compilation failing on Windows because of liblib.a
• a539257 An example to read high frequency analog data using i2s_adc (#2295)
• 70656aa fix leak in log_printf