nostrscript: add a helper function

nostrscript/bool_setting.ts

@@ -0,0 +1,18 @@
+
+import * as nostr from './nostr'
+
+export function go(): i32 {
+	var setting = "mny`or"
+	var new_setting = ""
+	for (let i = 0; i < setting.length; i++) {
+		new_setting += String.fromCharCode(setting.charCodeAt(i) + 1);
+	}
+	// this should fail
+	if (nostr.set_bool_setting("shmorg", true)) {
+		// you shouldn't be able to set settings that dont exist
+		return 0;
+	}
+	return nostr.set_bool_setting(new_setting, false)
+}
+
+go()