* infra/variables.tf: Add new variable 'site_statis_files_dir'
* infra/manifest.scm: Add guix manifest that captures all tools required for deploying this site. This currently includes terraform, in use terraform providers, as well as awscliv2 which is used directly from a null resource
* infra/main.tf: Pin all provider version so they are available from the rekahsoft-guix channel
Remove the need for the template provider. It is still included as these changes need to be applied to all environments before it can be removed.
Remove TF-UPGRAGE-TODO's
Use the new variable 'site_static_files_dir' for the location of the static site files to be deployed
* channels.scm (channel): Add symlink to top-level channels file
* infra/Makefile (SELECTED_WORKSPACE): Removed the dependency on terraform
(clean): Add new PHONY target 'clean' which cleans up terraform temporary files
(workspace): Add new PHONY target 'workspace which switches to user provided ENV
* channels.scm (channel): Updated rekahsoft-guix channel
* README.org (Features): Updated sections on deployment
* channels.scm: Update rekahsoft-guix channel
* blog-rekahsoft-ca.scm: Removed ghc-* packages that are now part of rekahsoft-guix channel;
these ghc-* packages can be contributed upstream to guix.
