[+] new commands for node tool

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

[*] Build error fixes, some renames

[*] log output renames
[*] lib versions update