Issue describing the changes in this PR

resolves#4593

This issue allows users to run func pack when they want to create a zip file that they can use the azure CLI to deploy. The general syntax of the command is as follows:

func pack [path of folder to pack] [language specific options] [--no-build] [--output]

When the user runs func --help the following is displayed:

Note that func pack will NOT be displayed when the user does func --help until we clean up the CLI and add all the validations for each command when running func pack. This will be done in a future PR

This PR adds the applicable E2E tests for the different scenarios and for each language worker runtime as well.

Pull request checklist

• My changes do not require documentation changes
  • Otherwise: Documentation issue linked to PR
• My changes do not need to be backported to a previous version
  • Otherwise: Backport tracked by issue/PR #issue_or_pr
• My changes should not be added to the release notes for the next release
  • Otherwise: I've added my notes to release_notes.md
• I have added all required tests (Unit tests, E2E tests)