HASelect setOptions crashes with options string longer than 256 chars

HASelect setOptions crashes with options string longer than 256 chars,
because in HASelect.cpp
>>> uint8_t HASelect::countOptionsInString(const char* options) const
...
>>> for (uint8_t i = 0; i < optionsLen; i++) {

i is uint8_t

A light effects selector can easily take a longer list of options.

I changed to uint16_t and is working fine with a longer > 256 chars options string.