Kingsland.MofParser v8.0.0

• Implementing a new set of MOF domain objects, starting with Instances.
• bumping to dotnet 8
• bumping to nunit 4.x.x
• some minor delinting

Kingsland.MofParser v7.0.0

In this release:

• dotnet 7 upgrade
• added PropertySlotAst to syntax tree
• added a few more unit tests for Ast structure
• various refactoring and de-linting