Simple DynDNS update tool for self-owned INWX domains

Usage:

• Run get-dependencies.sh to clone the inwx python library (Commit #af81cb860b9226354efc8984de08ad101795227d)
• Run python inwx_dyndns.py
• Access your device ip at port 4321 (could be changed in the inwx_dyndns.py file) with get params username=<INWX_USERNAME>, password=<INWX_PASSWORD>, ip=<IP TO SET>, domain=<SUBDOMAIN TO UPDATE> i.e.: http://<DEVICE IP>:4321?username=<INWX_USERNAME>&password=<INWX_PASSWORD>&ip=<IP TO SET>&domain=<SUBDOMAIN TO UPDATE>