Allow `Window/InteriorShading/Type` (and `ExteriorShading/Type` and `InsectScreen`)

[shorowit]

Choice values (e.g., "dark blinds") provided will be used to better default the summer/winter shading coefficients.

And do similar for exterior and insect screens:

• [ ] Interior shading
• [ ] Exterior shading https://github.com/NREL/OpenStudio-HPXML/pull/1826
• [ ] Insect screens https://github.com/NREL/OpenStudio-HPXML/pull/1826

[shorowit]

Proposed for HPXML schema: https://github.com/hpxmlwg/hpxml/pull/418