Trigger connection loop on config device addition (fixes #7600) (#7604)

* Trigger connection loop on config device addition (fixes #7600)

* Also check for device address equality

* Move EqualStrings from api_test to utils, and use in connections/service.go

* Make sure CommitConfiguration cannot block due on the deviceAddressesChanged channel

* Update lib/connections/service.go

Co-authored-by: Jakob Borg <jakob@kastelo.net>

lib/util/utils.go

@@ -280,3 +280,15 @@ func NiceDurationString(d time.Duration) string {
 	}
 	return d.String()
 }
+
+func EqualStrings(a, b []string) bool {
+	if len(a) != len(b) {
+		return false
+	}
+	for i := range a {
+		if a[i] != b[i] {
+			return false
+		}
+	}
+	return true
+}