VFP Runtime: Implemented AMEMBERS() for native objects (nInfo 0 and 1)

[Irwin1985]

Hi Team,

In this PR I have implemented the first version of AMEMBERS() function.

Implementation details:

• Scope: Supports Native X# Objects.
• Modes: Implements nArrayContentsID modes 0 (1D Array, Names only) and 1 (2D Array, Name + Type).
• Reflection: Uses .NET Reflection to discover Properties, Methods, Fields, and Events.
• Output: Returns uppercase member names, sorted alphabetically, consistent with VFP behavior.
• Handling: Correctly handles __FoxArray resizing for both 1D and 2D results.

Limitations (Phase 2):

• COM Objects: nArrayContentsID = 3 is not yet implemented.
• Filters: cFlags filtering (e.g., distinguishing "Native" vs "User Defined") is currently ignored (returns all public members)

Tests:

• Added AMembersTests.prg in the test project.
• Verified functionality using a test class with properties, method, and events.
• Validated array structure using ASubscript() logic for 2D navigation.