Add GameVersion domain and login validation

RecNet.Infrastructure/Services/Meta/MetaAuthValidator.cs

@@ -0,0 +1,15 @@
+using RecNet.Application.Common.Interfaces;
+using RecNet.Application.Common.PlatformAuth;
+using RecNet.Domain.Common;
+
+namespace RecNet.Infrastructure.Services.Meta;
+
+public class MetaAuthValidator : IPlatformAuthValidator
+{
+    public PlatformType PlatformType 
+        => PlatformType.Meta;
+
+    public Task<PlatformAuthResult> ValidateAsync(string platformAuthentication, string platformId,
+        CancellationToken ct = default)
+        => Task.FromResult(PlatformAuthResult.Success(null)); // TODO: Implement
+}