WIP add API Key authentication

src/Robware.Data/ApiKeyRepository.cs

@@ -1,10 +1,19 @@
 using Robware.Auth.API;
+using System;
 using System.Threading.Tasks;
 
 namespace Robware.Data {
 	public class ApiKeyRepository : IApiKeys {
-		public Task<ApiKey> Get(string key) {
-			throw new System.NotImplementedException();
+		public async Task<ApiKey> Get(string key) {
+			if (key=="denied")
+				throw new ApiKeyNotFoundException(key);
+				
+			return new ApiKey {
+				Name = "Hardcoded key",
+				Key = key,
+				Enabled = true,
+				IssueTimestamp = DateTime.Now
+			};
 		}
 	}
 }