Provide default configs

[SISheogorath]

We should add a few default configs to provide some core functionalities like basic NickServ, ChanServ and OperServ. Also generating the upstream settings and add the service oper user

[SISheogorath]

Todos:

• Enable or disable basic services by environment variables
• allow configuration of
  • server protocol
  • seed
  • Chanstats
  • webcpanel
• oper user (generate a default soper user when password is specified)
• m_gnutls (allow TLS based uplinks)
• dnsbl (allow to enable DNSBLs)
• pcre (sest PCRE as default regex engine)
• Provide sendmail (maybe use ssmtp)