Stencils are incorrect in one direction

[kfarr]

In San Francisco, a travel lane reserved for "Bus [and] taxi [vehicles] only" is marked with stencils that look like this from a top-down (plan) view: ONLY TAXI BUS

The ordering is reversed so that motorists see the words from the bottom-up.

3DStreet gets this correct for only one direction, however in the reverse direction the words are inverted which is incorrect.

Instead of changing RotationY for each word, there could be a stencil parent element whose rotation can be affected by RotationY, but the child elements are placed correctly per above.

Here is an example of a location in the parser where this parent could be placed: https://github.com/3DStreet/3dstreet/blob/main/src/aframe-streetmix-parsers.js#L615

Here's a screenshot of https://github.3dstreet.org/#https://streetmix.net/kfarr/72 with markup to indicate the error

(this also seems to be an issue with the flex-zone segment but reversed)