Pymycobot

- update debug mode

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- fix bug.

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- fix error bug
- add new method `set_encoder`, `get_encoder`, `set_encoders`

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- fix `is_in_position()`
- refactor process method
- some methods can be chained
- add new methods to control pump
- change `set_led_color(rgb:str)` -> `set_color(r:int, g:int, b:in)`

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2021-03-12

added more test file.

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- add new method for girpper and IO.

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- refactor pymycobot
- add Error class

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2021-01-20

`v1.0.6` fix get_coords() error.