Upgrade gwlf-e
Upgrade gwlf-e

This gets us the new "Low-Density: Open Space" result, renames
`Ld_Residential` to `Ld_Open_Space`, and removes the "Other
Upland Areas" result.

This uses the 2.0.0-beta tag of gwlf-e, in case there are any
follow up changes.

WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed,WikiWatershed/model-my-watershed