[*] New root nodes for testnet

over unix-socket (client side) by 70%

update modules

[+] Testnet root public keys
[+] New kelvin-node-tool and kelvin-node-cli for kelvin node operations

[-] Default mining process

[+] Node declaration and publications operations

[+] Some more submodules

[*] some changes in default configs
[+] sig handler
[+] Some submodules

[+] Default configs
[*] New main.c