Code Quality: Dispose unmanaged objects automatically using IDisposable

[0x5bfa]

Description

I'd propose disposable structs in order to avoid memory leaks due to undisposed unmanaged objects.

The structs

• ComPtr
• ComHeapPtr

Usage

{
    try
    {
        using ComPtr<T1> pObj1 = default;
        var hr = CoCreateInstance(..., (void**)pObj1.GetAddressOf());
        var hr = pObj1.Get()->Method1(...);

        using ComHeapPtr<LPWSTR> pDisplayName = default;
    }
    catch (Exception ex)
    {
        // Log the exception
    }
}

Concerned code

• All com related unmanaged objects.

Gains

• prevent memory leaks

Requirements

• Implement the structs that implements IDisposable and use it through 'using' statement

Comments

No response

[0x5bfa]

This was implemented in #15911 and it works well.
I'm considering cherry picking into another PR to merge it first.