OSut v.0.8.1

Harmonizes pyOSut and OSut approaches when resetting a layered construction's insulating layer:

• a tad safer
• changes in naming convention

OSut v0.7.0

• Harmonizes with upcoming Ruby OSut release.
• Adds spaceWidth and spaceHeight functions
• Removes openstudio as a dependency
• Simplifies GitHub Actions testing

OSut v0.6.0

• first release
• functionality (& unit tests) matching original Ruby OSut gem repo.