Retrieves an Rcpp module from a dynamic library, usually associated with a package.
Module(module, PACKAGE = , where = , mustStart = )
An object of class Module collecting functions and classes declared in the module.
Name of the module, as declared in the RCPP_MODULE
macro internally
Passed to getNativeSymbolInfo
When the module is loaded, S4 classes are defined based on the
internal classes. This argument is passed to setClass
TODO