* Adds SparkFun Pro Micro ESP32-C3 variant file
Adds SparkFun Pro Micro ESP32-C3 variant to boards.txt
* removes some pin definitions that are defined elsewhere
* removes the accidental camel case in variant folder name
* Attempts again to fix camel case in the variant file
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Co-authored-by: Jan Procházka <90197375+P-R-O-C-H-Y@users.noreply.github.com>
