Debian/Ubuntu repository support

See merge request !30

update dap-chain-net; update ver. to 2.4.7; update

See merge request !29

/dist/etc/network/kelvin-testnet.cfg

[*] Set of clang fixes
[*] Fixed debian packaging
[+] profile.d/ file for bash defaults on server

[-] Removed master node certs
[+] Debian templates for cellframe node config
[-] Debian tempaltes for kelvin-testnet config

various fixes

See merge request !28

[*] Fixed debian scripts
[*] Submodules new versions

update module libdap-chain-crypto

See merge request !27

updated public keys in dist and updated submodules

See merge request !26

[*] Submodules update
[*] 2.3-0 version

Bugs 2551

See merge request !25