Feature 5220

[+] add new datum type [+] add a signer file [] fix bugs [] fix double free [] fix memory leak [] fix work function [] fix use on free [+] add two functions into com signer [] change name of command; [] change code [] change datum type [] change name of type [] change name of type [+] add return type of chain - signer [+] add new type of chain [+] add datum str [] free all [+] add option [] fix ) [+] add a signer file [+] add new datum type