Add __bool__ for MetaType

[jhonabreul]

Add __bool__ for MetaType.

This is required so that truthiness for Type is checked using this slot instead of __len__

[Copilot]

Pull Request Overview

This PR adds an implementation for bool on the MetaType so that truthiness for types is evaluated using nb_bool rather than len.

• Added nb_bool implementation in MetaType.cs that always returns 1.
• Updated native type offsets (TypeOffset.cs and ITypeOffsets.cs) to include nb_bool.
• Introduced embed_tests to verify that types are truthy in Python.

Reviewed Changes

Copilot reviewed 5 out of 7 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/runtime/Types/MetaType.cs	Added nb_bool method that returns 1 for truthiness.
src/runtime/Properties/AssemblyInfo.cs	Updated assembly version to 2.0.44.
src/runtime/Native/TypeOffset.cs	Added nb_bool offset property.
src/runtime/Native/ITypeOffsets.cs	Added nb_bool property in the interface.
src/embed_tests/ClassManagerTests.cs	Added tests to verify that types are always truthy.

Files not reviewed (2)

• src/perf_tests/Python.PerformanceTests.csproj: Language not supported
• src/runtime/Python.Runtime.csproj: Language not supported