Add an uninstall tool

[bitcoin-tools]

Is your feature request related to a problem? Please describe.
Even though we list all files added in the readme, users who want to remove the files may not know how to do it.

Describe the solution you'd like
Add an uninstaller to automate the process. Search for the files to remove, then have the user confirm they want to delete the files, then delete it all.

Describe alternatives you've considered
Expand the section of the readme with steps to follow to manually delete the files.

Additional context
Add any other context or screenshots about the feature request here.

[bitcoin-tools]

Need to figure out how to handle the Bitcoin Core data directory, including any potential wallet.dat file.

[bitcoin-tools]

Here's the list of files to remove:
https://github.com/bitcoin-tools/nodebuilder#which-files-does-this-script-touch