eval-py pre-package popular modules

[G4Vi]

In order to make eval-py more likely to work on generated code, it should have more modules preinstalled.

@nilslice suggested:

• requests
• top packages from https://pypistats.org/top

When doing so we must make sure:

• the module is compatible (must be pure python and not use advanced network/syscalls)
• the file size of eval-py doesn't balloon too much