Added a new test case for wrapped classes. Ignore-this: 9df753bfb17d2cd29644b6129e4b3846
Added a new test case for wrapped classes.
Ignore-this: 9df753bfb17d2cd29644b6129e4b3846

This test case is to ensure that calling :delete() from Lua on an
object instantiated in C++ does not call the object destructor.

Also, separated in several smaller test cases the large test case that
tested destructor-related things.

lmbarros/Diluculum