Add package publishing

[zanieb]

• Adds a packse publish command that forwards to twine
• Adds PACKSE_VERSION_SEED to allow versions to vary based on external information
  • e.g. We can use the Git commit hash to publish new versions on each merge to main even if the scenario is unchanged
• Adds build and publish of all scenarios to test PyPI on merge to main
• Adds debug logs with hatch output during build (and same for twine output)