[WIP] Improvment Script

[mr-bolle]

• Server Protokoll for ovpn_genconfig (tcp / udp)
• set DNS during ovpn_genconfig -n
• remove ip-pihole.sh
• move to own repository (docker-compose bad idea)
• PEM ca.key password as user entry variable -- not so easy
  https://stackoverflow.com/questions/22415601/using-easy-rsa-how-to-automate-client-server-creation-process
  Enhancement: Make configuration scriptable kylemanna/docker-openvpn#181 (comment)
  https://github.com/kylemanna/docker-openvpn/blob/master/bin/ovpn_initpki -- easyrsa build-ca
• password for OpenVPN Configuration optional
  easyrsa build-client-full CLIENTNAME nopass
• docker-compose.yml adjustment pi-hole enviroment ex. adjust .env over script - relative path
• set the sub-network if this don't exist
• change the Pi-Hole Container IP and adjust sub-network
• adjust OpenVPN firewall.sh if external Port != 1194 sample-config-files/firewall.sh
• add revers proxy traefik, and use default https Port 443
• possibility to run this container on a Raspberry Pi works with x86_x64 and armv7 Hardware #3
• create Menu Bash Script for easy Setup with whiptail
• add alternative OpenVPN with PiVPN Script (reason better maintenance) 🚧