Added pre-existing member variables and types to Generator.
Added code to assign class name to Generator object.
Added Matrix3cd to list of numpy replacements
Added more code translation capabilities

These include a wider range of Eigen functions and a raw C++ injection
function.
Set vector regex to allow vector base type to be a vector
Set _Call function to embed string arguments with quotes
Added functions to generate ancillary code

These include argument specifications and destructor code.
Added convenience function to generator submodule

This takes the code produced by the Generator object and injects it into
a linear operator template.