Fix network connection timeouts and security detection

- Fixed detectSecurity() where WPA2 (0x100/PSK) and WPA3 (0x400/SAE)
  flags were swapped, causing NM to reject connections silently
- Added missing AP path to AddAndActivateConnection call
- Added critical connection settings: UUID, interface-name,
  autoconnect, permissions
- Changed init() to fail fast with logger.Fatal instead of
  silent failure on NM connection error
- Added auth-alg and psk-flags to WPA/WPA2 security settings

vendor/modules.txt

@@ -11,6 +11,9 @@ github.com/go-gl/mathgl/mgl32
 # github.com/godbus/dbus/v5 v5.1.0
 ## explicit; go 1.12
 github.com/godbus/dbus/v5
+# github.com/google/uuid v1.3.0
+## explicit
+github.com/google/uuid
 # github.com/jinzhu/inflection v1.0.0
 ## explicit
 github.com/jinzhu/inflection