Missing gps_ prefix

[EtienneAr]

Just a little mistake here :
the "gps_" prefix is missing before "encode(char c)" in tinygps.h .
(in tinygps.c the function is gps_encode(char c), which is consistent with the other functions).

tinygps/tinygps.h

Line 65 in 64e29d9

bool encode(char c);