Add anchore/syft

We want to add anchore/syft because...

• it works consistently across Windows, Mac, and Linux.
• syft is a CLI tool from Anchore for generating SBOMs from a container or filesystem

This could be as simple as copying _example, updating the github releases
info, and doing a find and replace on a few file system path names.

How to create a webi installer

Skills required

• Basic Command Line knowledge (mkdir, mv, ls, tar, unzip, variables)

Steps

1. Clone and setup the webi packages repo

   git clone git@github.com:webinstall/packages.git
   pushd packages/
   npm install

2. Copy the example template and update with info from Official Releases:
   https://github.com/anchore/syft/releases

   rsync -av _example/ syft/

   • update syft/release.js to use the official repo
   • Learn how syft unpacks (i.e. as a single file? as a .tar.gz? as
     a .tar.gz with a folder named syft?)
   • find and replace to change the name
     • update syft/install.sh (see bat and jq as examples)
     • update syft/install.ps1 (see bat and jq as examples)
3. Needs an updated tagline and cheat sheet
   • update syft/README.md
     • official URL
     • tagline
     • Switch versions
     • description / summary
     • General pointers on usage (and perhaps "gotchas")

It's also okay to have multiple people work on part of this (i.e. the Cheat
Sheet can be done independently from the install.sh)