Add dependencies to generated module

After pip installing the generated wheel module, there are some missing modules when doing the following in a python script:
`
import vtk
from vtk.web import protocols
from vtk.web import wslink as vtk_wslink
from wslink import server
`

twisted, wslink and win32api are missing modules.

Manually installing them works though

Reproduce the problem by installing the generated wheel and running the Python imports shown in the issue. Inspect how the wheel declares dependencies, then verify that twisted, wslink, and win32api are available after installation and that the listed imports complete successfully.

Vom Indexierungsmodell aus dem Issue-Text verfasst.