Add scripts for touchscreen drivers

scripts/configs/console.txt

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+## Console selected
+

scripts/configs/hdmitouch.txt

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+hdmi_group=2
+hdmi_mode=1
+hdmi_mode=87
+hdmi_cvt 800 480 60 6 0 0 0
+dtparam=spi=on
+
+dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900

scripts/configs/lcd_markers.txt

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+
+## Begin LCD Driver
+## No driver loaded
+## End LCD Driver

scripts/configs/tontec35.txt

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+dtparam=spi=on
+dtoverlay=mz61581
+

scripts/configs/waveshare.txt

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+dtparam=spi=on
+dtoverlay=waveshare35a
+dtoverlay=ads7846,cs=1,penirq=17,penirq_pull=2,speed=1000000,keep_vref_on=1,swapxy=1,pmax=255,xohms=60,xmin=200,xmax=3900,ymin=200,ymax=3900