joeADSP

fix: include agent/policies pt files in package_data

1

This PR includes `agent/policies/*.pt` files in the package_data so that this directory is accessible after pip install of nasim. closes #40

Running ``` pip3 install nasim pip3 install nasim[dqn] python3 -m nasim.demo tiny -ai ``` fails as required file `dqn_tiny.pt` not included as part of package during pip install ```bash FileNotFoundError:...