Add response caching middleware

Author: InfinityGhost

OpenTabletDriver.Web/Startup.cs

@@ -67,6 +67,7 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
 
             app.UseHttpsRedirection();
             app.UseStaticFiles();
+            app.UseResponseCaching();
 
             app.UseRouting();
             app.UseForwardedHeaders(new ForwardedHeadersOptions