Fix geometry circular dependency loading order

[onefork]

Checklist

• The code has been run through pretty yarn run pretty
• The tests pass on CircleCI
• You have referenced the issue(s) or other PR(s) this fixes/relates-to
• The PR Template has been filled out (see below)
• Had a beer/coffee because you are awesome

What?

Fixes #406
Fixes #437
Fixes #533

Why?

The loading order of modules is bundler dependent. This module currently compiles to a broken script e.g. under certain Webpack config.

How?

Use internal module pattern to ensure loading order.

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