[-] Remove meaningless comment
[*] Fix logical error in log thread causing a deadlock
[*] Fix if statement causing dead code in sync logic
[*] Fix log message type

This reverts merge request !73

This reverts merge request !72

[*] Move VPN related command from NET module to VPN module

[*] Fix verification of emission
[*] Fix double reply in  tx_verify

[-] Remove mining dependency from a lot of modules
[-] Remove srv-vpn dependency from modules/net

Revert "[*] dap_chain_node_mempool_process() now processes not only transactions but also other event types"

This reverts commit b726fc32