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clarified BLTouch calculation & changed comment delimitters/flags
I found it hard to pickout the various sections in this area so I
changed most comments from // style to /** ... */
Made the BLTouch calculation simpler and clarified the units of measure
for the result.
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add changes to example configurations
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add TinyBoy2 to this PR & add BLTouch Delay
The OLED is driven by an SSD1306, connected to the board via
I2C, the rotary encoder is connected to 3 GPIO pins.
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>