Pedals returns int

[diyarajon]

Describe the bug
Pedals_Read produces a number from 0 to 100 but returns a signed integer. This creates the possibility of a bug. Return type should be uint8_t.

To Reproduce
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2. Which requirements are being tested?
3. Which test is used?
4. What is the hardware configuration?
5. What combination of inputs cause the error?
6. What does the error look like?
7. Does this issue already exist?

Expected behavior
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Additional context
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