[+] digits convert
[+] min and max macros

[*] Replaced strtok() to strtok_r() for MT safe

[*] ifndef/define changed to pragma once
[*] dap_strdupv() changed its argument:   char ** -> const char **

[+] int128_t and uint128_t

Feature 2264

renamed DapList -> dap_list_t

fixed dap_circular_load_test()

* added serialize/desialize PICNIC and TESLA keys
* added serialize/desialize BLISS keys