(#187) Fix installing multiple packages with force

[Windos]

Description Of Changes

This PR ensures that lists of packages are still treated as lists when provided alongside the Force flag on win_chocolatey.

Additionally, tests have been added to cover the failure case that this change fixes.

Motivation and Context

Currently, when using the force flag on the win_chocolatey command the list of packages is being added to the collection of missing packages as a single string. This results in the packages being passed to choco.exe bounded by quote character (e.g. "package1 package2") and so this is being interpreted as a single (incorrect) package name.

Testing

---
- hosts: testvm
  gather_facts: true

  tasks:
  - name: Install list of software
    chocolatey.chocolatey.win_chocolatey:
      name:
        - 7zip
        - firefox
      state: present
    register: force_install_multiple

  - name: assert install multiple packages
    assert:
      that:
      - force_install_multiple is not changed
      - force_install_multiple is not failed

  - name: Force nstall list of software
    chocolatey.chocolatey.win_chocolatey:
      name:
        - 7zip
        - firefox
      state: present
      force: true
      ignore_checksums: true
    register: force_install_multiple

  - name: assert force install multiple packages
    assert:
      that:
      - force_install_multiple is changed
      - force_install_multiple is not failed
...

Operating Systems Testing

N/A

Change Types Made

• Bug fix (non-breaking change).
• Feature / Enhancement (non-breaking change).
• Breaking change (fix or feature that could cause existing functionality to change).
• Documentation changes.
• PowerShell code changes.

Change Checklist

• Requires a change to the documentation.
• Documentation has been updated.
• Tests to cover my changes, have been added.
• All new and existing tests passed?
• PowerShell code changes: PowerShell v3 compatibility checked?

Related Issue

Fixes #187