Several (potentially even external) libraries might want
to use our mock data and some utils. I pulled them
out into a lib with a package.json

This reverts commit 2c26f4ed.

This feature introduces @graphpolaris/shared/graph-layout with
four layouts (circular, noverlap, random, forceatlas2)

Shows how to apply layouts to graphology graphs in the schema.

Provides one idea how to handle redux and data state driven testing in storybook. Adds three test cases (1) with data (2) without data both handled in redux, (3) loading with an animated spinner