Touchscreen driver POC

Example documentation
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+/*****************************************************************************
+* | File      	:   Readme_CN.txt
+* | Author      :   Waveshare team
+* | Function    :   Help with use
+* | Info        :
+*----------------
+* |	This version:   V1.0
+* | Date        :   2021-06-05
+* | Info        :   Here is an English version of the documentation for your quick use.
+******************************************************************************/
+This file is to help you use this Demo.
+A brief description of the use of this project is here:
+
+1. Basic information:
+This routine was verified on Raspbe Pi 4B using the XXXinch e-paper HAT module.
+You can view the corresponding test routines in the \lib\Examples\ of the project.
+
+2. Pin connection:
+Pin connections can be viewed in \lib\epdconfig.py and will be repeated here:
+EPD    =>    Jetson Nano/RPI(BCM)
+VCC    ->    3.3
+GND    ->    GND
+DIN    ->    10(SPI0_MOSI)
+CLK    ->    11(SPI0_SCK)
+CS     ->    8(SPI0_CS0)
+DC     ->    25
+ERST   ->    17
+BUSY   ->    24
+INT    ->    27
+TRST   ->    22
+SDA    ->    SDA1
+SCL    ->    SCL1
+
+3.Installation library
+python2
+    sudo apt-get update
+    sudo apt-get install python-pip
+    sudo apt-get install python-pil
+    sudo apt-get install python-numpy
+    sudo pip install RPi.GPIO
+    sudo pip install spidev
+
+python3
+    sudo apt-get update
+    sudo apt-get install python3-pip
+    sudo apt-get install python3-pil
+    sudo apt-get install python3-numpy
+    sudo pip3 install RPi.GPIO
+    sudo pip3 install spidev
+
+4. Basic use:
+Since this project is a comprehensive project, you may need to read the following for use:
+You can view the test program in the examples\ directory.
+Please note which ink screen you purchased.
+Chestnut 1:
+    If you purchased 2.9inch Touch e-Paper HAT, then you should execute the command:
+        sudo python TP2in9_test.py
+    or
+        sudo python3 TP2in9_test.py
+