Merge pull request #172 from jposada202020/adding_scales_library

Adding library Scales

Author: tannewt

.gitmodules

@@ -367,3 +367,6 @@
 [submodule "libraries/drivers/bma220"]
 	path = libraries/drivers/bma220
 	url = https://github.com/jposada202020/CircuitPython_BMA220.git
+[submodule "libraries/helpers/scales"]
+	path = libraries/helpers/scales
+	url = https://github.com/jposada202020/CircuitPython_scales.git

circuitpython_community_library_list.md

@@ -108,6 +108,7 @@ Here is a listing of current CircuitPython Community Libraries. These libraries
 * [CircuitPython_PunkConsole](https://github.com/CedarGroveStudios/CircuitPython_PunkConsole.git) Emulate the Atari Punk Console \([Docs](https://github.com/CedarGroveStudios/CircuitPython_PunkConsole/blob/main/media/pseudo_readthedocs_cedargrove_punkconsole.pdf))
 * [CircuitPython_RangeSlicer](https://github.com/CedarGroveStudios/CircuitPython_RangeSlicer.git) Scale a range of input values into quantized range using hysteresis for noise reduction \([Docs](https://github.com/CedarGroveStudios/CircuitPython_RangeSlicer/blob/master/media/pseudo_readthedocs_rangeslicer.pdf))
 * [CircuitPython_RGB_SpectrumTools](https://github.com/CedarGroveStudios/CircuitPython_RGB_SpectrumTools.git) Methods and classes for converting a normalized spectral index to RGB color values \([Docs](https://github.com/CedarGroveStudios/CircuitPython_RGB_SpectrumTools/blob/main/media/pseudo_rtd_cedargrove_rgb_spectrumtools.pdf))
+* [CircuitPython scales](https://github.com/jposada202020/CircuitPython_scales.git) Displayio widget to draw graphical scales. Scales can be animated, having the ability to represent realtime data ([PyPi](https://pypi.org/project/circuitpython-scales/)) \([Docs](https://circuitpython-scales.readthedocs.io/en/latest/))
 * [CircuitPython_Schedule](https://github.com/cognitivegears/CircuitPython_Schedule) Reduced version of the schedule library for CircuitPython ([PyPi](https://pypi.org/project/circuitpython-schedule/)) \([Docs](https://circuitpython-schedule.readthedocs.io/en/latest/))
 * [CircuitPython_ShadowWatcher](https://github.com/CedarGroveStudios/CircuitPython_ShadowWatcher.git) Detects a shadow cast over an analog light sensor \([Docs](https://github.com/CedarGroveStudios/CircuitPython_ShadowWatcher/blob/main/media/pseudo_readthedocs_shadowwatcher.pdf))
 * [CircuitPython Slider](https://github.com/jposada202020/CircuitPython_slider.git) Simpleslider for Touchscreens ([PyPi](https://pypi.org/project/circuitpython-slider/)) \([Docs](https://circuitpython-slider.readthedocs.io/en/latest/))