Added gestures to the code#2

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MoJo2600 wants to merge 6 commits intochendy:masterfrom

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Commits on Dec 31, 2017

Ported first couple of methods from Arduino to RaspberryPi
MoJo2600
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Commits on Jan 1, 2018

First interration of working Gestures
MoJo2600
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Commits on Jan 6, 2018

Ported more methods, packetized code, added new demo
MoJo2600
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Commits on Jan 9, 2018