readme: further clarify purpose in intro

readme: change dir names and paths

readme: change header intro

Retire project

- Added appropriate badges to README.
- Updated README header for improved wording.
- Updated LICENSE copyright.

I will never forget working on this project late at night from coffee shops and
restaurants in Cambridge, Massachusetts back in the mid-2010s, all in preparation
for a package hosting migration project at work. Thanks for the memories,
powerpkg!

Fix README Getting Started code blocks

Fix README VerifyInstall indentation issue

Fix README VerifyInstall indentation issue

Fix README VerifyInstall indentation issue

Update script header information

Fix README Section indentation issue

Update README summary

Update README summary

Remove tabs that were previously used for indentation

Fix indentation issues

Improve readability of powerpkg script

Update copyright information

Update copyright information

Update license copyright year

Add global delimiter property and MSI GUID regex property.

Add documentation for temporarily skipping task entries