decompose pip_cmg

add serialization/pijsonserialization.h for JSON de/serialization
add -J flag for pip_cmg to make JSON serialization methods
not finished yet, but basically workable now

libs/main/pip.h

@@ -33,6 +33,7 @@
 #include "piioutilsmodule.h"
 #include "piliterals.h"
 #include "pimathmodule.h"
+#include "piserializationmodule.h"
 #include "pistatemachinemodule.h"
 #include "pisystemmodule.h"
 #include "pithreadmodule.h"