Add batch files to add and remove firewall rules

[sitiom]

Description

This change adds batch files to programmatically add and remove sunshine firewall rules. In my use case, if I run sunshinevc without opening Sunshine for the first time, Sunshine will silently fail and would not be discoverable within the network, as normally, you would have to deal with this popup first which sunshinevc wouldn't show:

Screenshot

It works as intended (admin required, of course):

Issues Fixed or Closed

• Fixes Windows Installer should automatically add and remove firewall rules #206

Type of Change

• New feature (non-breaking change which adds functionality)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the docstring/documentation-blocks for new or existing methods/components

[github-actions]

Your PR was set to master, PRs should be sent to nightly
The base branch of this PR has been automatically changed to nightly, please check that there are no merge conflicts

[ReenigneArcher]

Todo:

• have cmake install the bat files (see here: v0.14.0 windows package issues #197 (comment))
• have cmake execute the scripts (see here: v0.14.0 windows package issues #197 (comment))

[sitiom]

Oops, accidentally deleted the fork.