The latest change to try and properly handle NumberPtr results
from plugin methods broke the passed parameters on methods with
a void return. To solve this once and for all, I changed all
plugin methods to be a void return, and added a _results field
as part of the passed params parameter
This not only simplifies all the use of _t types to the
ScummVM equivalents, it gets rid of the int32 usage in
favor of just int, solving common type clashes with the
Amiga, for which int doesn't match int32
The original had issues with the types of the method params
being 32 bits for ints, but 32 or 64 bits for string pointers.
This could easily result in a mismatch of passed params to
method definitions. To avoid this, I now pass the parameters
as a Common::Array, and a set of macros to simplify getting
the parameter values within the script method
Paul Gilbert
SupSuper