CPU to 100% when unable to lock

[ilario]

The initial code had a loop inside the TCA9548A_Channel.try_lock() function that was then modified by #39 to be as it appears today:

Adafruit_CircuitPython_TCA9548A/adafruit_tca9548a.py

Lines 58 to 63 in 893d14d

	def try_lock(self) -> bool:
	"""Pass through for try_lock."""
	while not self.tca.i2c.try_lock():
	time.sleep(0)
	self.tca.i2c.writeto(self.tca.address, self.channel_switch)
	return True

I am using an A64-OLinuXino with a battery pack for controlling the multiplexers.
When there is a power cut, the CPU goes to 100% due to this loop and the battery pack does not last much.

Would it be ok to increase the sleeping time from zero to something else, or even to make it customizable?