Initial commit for the adsb_decoder. In the file are two functions: hex_to_int and adsb_decode. hex_to_int is used by adsb_decode. It returns
the decimal equivalent of a hex in a character array. adsb_decode takes an adsb signal ( in a character array ) and returns a pointer to a 3 element
float array containing the obstacle's position. This may be changed to just accept an array as an argument and manipulate that.
Merge https://github.com/Jochi-Labs/J3CA-main