(HI-273) Support bundler workflow on windows x64

Previously the Gemfile contained windows gem dependencies copy and
pasted from elsewhere.

Hiera only explicitly depends on the `win32-dir` gem to resolve
its data directory on windows, e.g. C:\ProgramData. As such the
Gemfile is updated to include that dependency.
Merge branch 'hi-273-stable' into stable

* hi-273-stable:
  (HI-273) Support bundler workflow on windows x64
(HI-273) Build architecture specific Windows gems

 - Ensure that packaging tasks correctly build the Hiera gem on Windows
   by including additional definitions
Merge pull request #199 from Iristyle/ticket/stable/hi-273-fix-gem-dependencies

(HI-273) Build architecture specific Windows gems
(RE-1497) Remove quantal from build_defaults

This commit removes quantal from all build defaults because it is end of
life. It removes the defaults from the build_defaults yaml.