implement argtable in hf 14a apdu (#490)

* added `hf 14a reader` to source and added functionality to exec empty commands
* added `hf 14a raw`
* added samples to command's help
* added some help
* added changelog
* update to new argtable3 --- https://github.com/argtable/argtable3
* changed included getopt to `https://github.com/freebsd/freebsd/blob/master/include/getopt.h` (getopt from freebsd with simplified BSD license)