Merge pull request #157 from jposada202020/adding_CircuitPython_Slider

adding Slider

Author: jposada202020

.gitmodules

@@ -340,3 +340,6 @@
 [submodule "libraries/drivers/m5stack_unit8"]
 	path = libraries/drivers/m5stack_unit8
 	url = https://github.com/Neradoc/CircuitPython_m5stack_unit8
+[submodule "libraries/helpers/slider"]
+	path = libraries/helpers/slider
+	url = https://github.com/jposada202020/CircuitPython_slider.git

circuitpython_community_library_list.md

@@ -102,6 +102,7 @@ Here is a listing of current CircuitPython Community Libraries. These libraries
 * [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_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/))
 * [CircuitPython simple_dial](https://github.com/jposada202020/CircuitPython_simple_dial.git) Simple dial to graph Gyros, dial or simple clocks ([PyPi](https://pypi.org/project/circuitpython-simnple-dial/)) \([Docs](https://circuitpython-simple-dial.readthedocs.io/en/latest/))
 * [CircuitPython Styles](https://github.com/jposada202020/CircuitPython_styles.git) Library helper to add styles to CircuitPython display functions CircuitPython widgets ([PyPi](https://pypi.org/project/circuitpython-styles)) \([Docs](https://circuitpython-styles.readthedocs.io/en/latest/))
 * [CircuitPython_TemperatureTools](https://github.com/CedarGroveStudios/CircuitPython_TemperatureTools.git) A collection of Dew Point, Heat Index, and  temperature unit helpers \([Docs](https://github.com/CedarGroveStudios/CircuitPython_TemperatureTools/blob/main/media/pseudo_rtd_cedargrove_temperaturetools.pdf))