[Refactor]Port C++/CX to C++/WinRT (#34198)

## Summary of the Pull Request
Removes all C++/CX code, replacing it with C++/WinRT.

## Detailed Description of the Pull Request / Additional comments
Removes all C++/CX code.
Renames interop namespaces to be better consumed by CsWinRT.
Standardizes all projects on net8.0-windows10.0.20348.0, which is a
requirement for C++/WinRT usage.
FileLocksmithLibInterop brought to stdcpplatest and static analysis
errors were corrected.
Removed now unneeded string conversion code from
FileLocksmithLibInterop.
Changed interop KeyboardHook to use a single hook across all instances.
Required because on C++/WinRT we don't have the .NET runtime to bind a
object instance to a delegate and be able to pass it to a C function
pointer argument (still no idea why this worked correctly on C++/CX to
be honest). This change actually makes us create less low level keyboard
hooks.
Changed some code that depended on arrays since WinRT/C++ returns null
instead of an empty array through the interface.

## Validation Steps Performed
Built and tested runtime.

src/common/interop/CommonManaged.cpp

@@ -0,0 +1,39 @@
+#include "pch.h"
+#include "CommonManaged.h"
+#include "CommonManaged.g.cpp"
+#include <common/version/version.h>
+#include "../../modules/videoconference/VideoConferenceShared/MicrophoneDevice.h"
+#include "../../modules/videoconference/VideoConferenceShared/VideoCaptureDeviceList.h"
+
+namespace winrt::PowerToys::Interop::implementation
+{
+    hstring CommonManaged::GetProductVersion()
+    {
+        return hstring{ get_product_version() };
+    }
+    winrt::Windows::Foundation::Collections::IVector<hstring> CommonManaged::GetAllActiveMicrophoneDeviceNames()
+    {
+        auto names = std::vector<winrt::hstring>();
+        for (const auto& device : MicrophoneDevice::getAllActive())
+        {
+            names.push_back(device->name().data());
+        }
+        return winrt::multi_threaded_vector(std::move(names));
+    }
+    winrt::Windows::Foundation::Collections::IVector<hstring> CommonManaged::GetAllVideoCaptureDeviceNames()
+    {
+        auto names = std::vector<winrt::hstring>();
+        VideoCaptureDeviceList vcdl;
+        vcdl.EnumerateDevices();
+
+        for (UINT32 i = 0; i < vcdl.Count(); ++i)
+        {
+            auto name = vcdl.GetDeviceName(i).data();
+            if (name != L"PowerToys VideoConference Mute")
+            {
+                names.push_back(name);
+            }
+        }
+        return winrt::multi_threaded_vector(std::move(names));
+    }
+}