Generated python modules are too large for some IDEs to support

The generated code for Python modules can be large enough to have IDEs refuse to process them (e.g: for IntelliSense support) unless the user tweaks some advanced parameters of their IDE.

In particular, we have [reports](https://github.com/aws/aws-cdk/issues/18711) of JetBrains IDEs (PyCharm, etc...) require tweaking `idea.max.intellisense.filesize` in order to enjoy code completion from the IDE with the `aws_cdk.aws_ec2` module, as it is larger than the `2500` bytes limit that is the default.

In order to address this, the modules should be broken down into smaller files.

While this is certainly possible, doing so requires care, as it could lead to causing import cycles.

No source file or test is named. Start by locating the generator entry point that produces the Python modules, then inspect the generated aws_cdk.aws_ec2 module and its imports. Done means the generated modules are below the cited IDE size limit without introducing import cycles.

Written by the indexing model from the issue text.