Arduino core loopTask stack size is too small

[mathiasbredholt]

The Arduino esp32 framework currently starts the task that's responsible for running void loop() with a stack size of 8192 bytes. In the tests I've done, this is not enough for most libmapper applications, causing a stack overflow.

The stack size can be changed in hardware/esp32/1.0.4/cores/esp32/main.cpp.
16384 bytes works for me.