nethvoice: fix inbound and outbound lookup

[Stell0]

inbound and outbound lookup needs to be migrated:

• on migration, use phonebook user and password from ns7 and change localhost -> 127.0.0.1$MARIADB_PORT
• Also database host in nethcqr should me migrated too
• on new installation, mysql field for inbound and outbound lookup database password is too short for phonebook default generated password
• use /etc/freepbx_db.conf instead of /etc/freepbx.conf

[Stell0]

• removed inboundlookup and outboundlookup modules
• added lookup.php agi to nethcti3 module
• lookup.php does inboundlookup.php and outboundlookup.php work, but
  • it is one
  • don't uses FreePBX stack
  • don't uses FreePBX database
  • uses an hardcoded mysql query for lookup
  • just one query for each call instead of two
  • always uses phonebook database
  • customization are always possible putting scripts in lookup.d volume