aqhome: add writer for AQH_VARS (including a test).

apps/aqhome-react/main.c

@@ -21,6 +21,7 @@
 #include "aqhome/data/path-t.h"
 #include "aqhome/data/vars-t.h"
 #include "aqhome/data/vars_dbread-t.h"
+#include "aqhome/data/vars_dbwrite-t.h"
 
 #include <gwenhywfar/gwenhywfar.h>
 #include <gwenhywfar/args.h>
@@ -329,6 +330,12 @@ int _testModules(int argc, char **argv)
     return 2;
   }
 
+  rv=AQH_Vars_DbWrite_AddTests(TestFramework_GetModulesRoot(tf));
+  if (rv<0) {
+    fprintf(stderr, "Adding module \"vars_dbwrite\" failed.\n");
+    return 2;
+  }
+
   argc--;
   argv++;
   rv=TestFramework_Run(tf, argc, argv);