added hooks

# Conflicts:
#   dap-sdk/net/core/dap_events_socket.c
#   modules/net/dap_chain_node_cli.c
#   modules/net/dap_chain_node_cli_cmd.c
#   modules/net/srv/dap_chain_net_srv_common.c
#   modules/service/vpn/CMakeLists.txt
#   modules/service/vpn/dap_chain_net_srv_vpn.c
#   modules/service/vpn/dap_chain_net_srv_vpn_cdb.c
#   modules/service/vpn/dap_chain_net_srv_vpn_cdb_auth.c
#   modules/service/vpn/dap_chain_net_srv_vpn_cdb_server_list.c
#   modules/service/vpn/include/dap_chain_net_srv_vpn_cdb_auth.h

added support unique number for bugreports

See merge request !102

added support serial auth mode

See merge request !101

bugs-3427

See merge request !100

features-3975+3977

See merge request !99

[*] fixed node segfault while creating vpn-order with no -ext specified

See merge request !97

Several unrelated issues

See merge request !98

[-] 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

bugs-4013

See merge request !96

[*] fixed 'malloc(): corrupted top size' while getting more than ~18 vpn orders

See merge request !94

[*] fixed killing of tun device file descriptor if it was inactive for 2+ hours

See merge request !95

Features 3989

See merge request !93

[+] Now, when authorizing a user, the license expiration date is returned in dap_chain_time_t format in general xml.

features-2844

See merge request !92

Keep up-to-date

[*] fixed gdb group for tx_cond

See merge request !91

fixed bug with a foreign continent in the server "auto"

See merge request !90

Qt-based fix

See merge request !89