* put logging code into runCmd method to reduce repeated code

* Add new fedora container to run imagefactory
* Make architecture class from py attrs and make it raise exceptions
* Change build-image script to primarily invoke imagefactory directly. A
  second wrapper will be added to support running in kubernetes if
needed.

* Remove hardcodes of "Rocky" to use "shortname" instead
* Add in metadata

Run builds in a container

See merge request !46

* use a flag to determine if we want an RC or not
* Convert rldict and sigdict to an AttributeDict to allow access via
  __getattr__
* add fedora_release variable to configs for controlling icicle
  templates
* build_image.py script to generate per-architecture XML files used by
  imagefactory
* refactor time to call utcnow() once
* add jinja types to development dependencies until we move past jinja
  2.x
* Generate TDL templates per architecture for each image variant on
  demand
* Generate imagefactory and copy commands to execute image build
* Refactor Kubernetes job template to be generic for all current jobs

* use a flag to determine if we want an RC or not
* Convert rldict and sigdict to an AttributeDict to allow access via
  __getattr__
* add fedora_release variable to configs for controlling icicle
  templates
* build_image.py script to generate per-architecture XML files used by
  imagefactory
* refactor time to call utcnow() once
* add jinja types to development dependencies until we move past jinja
  2.x
* Generate TDL templates per architecture for each image variant on
  demand
* Generate imagefactory and copy commands to execute image build
* Refactor Kubernetes job template to be generic for all current jobs

Sync into Main

See merge request !47

* Utils is now empanadas.util.Shared
* Each config now has a profile name to determine latest-Rocky-{} link
  (Results RLBT#0000131)
* Check added to see if an ISO was built at some point, and forcefully
  exit if so
* Lorax tar ball should be in the format of of lorax-X.Y-ARCH to ensure
  there's no collisions between stable, beta, and lh builds