Proof Of Concept initial

Adds initial files for a proof-of-concept project, including Dockerfile, .gitignore, project files, and MQTT-related services.

This commit sets up the basic structure and configuration for exploring and validating the core concepts of the project.

Source/ProofOfConcept/Program.cs

@@ -0,0 +1,31 @@
+using Microsoft.Extensions.Caching.Memory;
+using ProofOfConcept.Services;
+
+var builder = WebApplication.CreateSlimBuilder(args);
+
+// builder.Services.ConfigureHttpJsonOptions(options => { options.SerializerOptions.TypeInfoResolverChain.Insert(0, AppJsonSerializerContext.Default); });
+
+builder.Services.AddOpenApi();
+builder.Services.AddMediator();
+builder.Services.AddMemoryCache();
+builder.Services.AddHybridCache();
+
+builder.Services.AddSingleton<IMessageProcessor, MessageProcessor>();
+
+builder.Services.AddHostedService<MQTTServer>();
+builder.Services.AddHostedService<MQTTClient>();
+
+var app = builder.Build();
+
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+}
+
+//Map tesla required public key file
+app.MapGet("/.well-known/appspecific/com.tesla.3p.public-key.pem", (IMemoryCache memoryCache) => memoryCache.GetOrCreateAsync("publicKeyCert", async (_) => await File.ReadAllTextAsync("Resources/Signature/public-key.pem")));
+
+//Map an under constrcution page...
+app.Map("/", ()=> "Under construction...");
+
+app.Run();