Enable/add extract PSD to OM tests

On going, we probably split OM from the Generator extracting part. To split the test suite is the first step.

`text-transform-data.js` is the only test that fails locally with using the `*-om.js` files instead of creating the OM ourselves. We must figure out how this can be. The test fails because of an assertion in matrix.js saying that `normalizeTransform` is not a function of the object it was called (a matrix).

@DmitryBaranovskiy @jhatwich any idea how this could be?
This seems to be a merge mistake. I'll fix this.