Modified the brightness property to use floats instead of ints, and#65

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geekguy-wy wants to merge 3 commits intoadafruit:masterfrom

geekguy-wy:modify_brightness_property

Commits on Feb 18, 2020

Modified the brightness property to use floats instead of ints, and
=Dale Weber
committed

Commits on Mar 7, 2020

Switched from using int() to using round() in the brightness routine.
=Dale Weber
committed
Merge branch 'master' of https://github.com/adafruit/Adafruit_CircuitPython_HT16K33 into modify_brightness_property
=Dale Weber
committed