[PLAT-1292] Partial work to route the JVM startup failures back to native code. Currently goes no further than JVM.cpp
[PLAT-2231, PLAT-1292] Placeholders for routing startup errors along with Java reported errors back to the service invoker.
[PLAT-1292] Unwrap BeanCreationException messages.
[PLAT-1292] Return the Java string to the caller.
Correction to InvokedSerializedForm to handle primitive types correctly.
[PLAT-1292] Correction to unit tests.