https://en.wikipedia.org/wiki/QR_code#Joining_a_Wi%E2%80%91Fi_network
Common format: WIFI:S:;T:<WEP|WPA|nopass>;P:;H:<true|false|blank>;;
https://en.wikipedia.org/wiki/QR_code#Joining_a_Wi%E2%80%91Fi_network
Common format: WIFI:S:;T:<WEP|WPA|nopass>;P:;H:<true|false|blank>;;