Added IGlobalConfiguration overloads to UsePostgreSqlStorage (#47)

src/Hangfire.PostgreSql.NetCore/PostgreSqlBootstrapperConfigurationExtensions.cs

@@ -58,5 +58,41 @@ public static PostgreSqlStorage UsePostgreSqlStorage(
 
 			return storage;
 		}
-	}
+
+        /// <summary>
+		/// Tells the bootstrapper to use PostgreSQL as a job storage,
+		/// that can be accessed using the given connection string or 
+		/// its name.
+		/// </summary>
+		/// <param name="configuration">Configuration</param>
+		/// <param name="nameOrConnectionString">Connection string or its name</param>
+		public static PostgreSqlStorage UsePostgreSqlStorage(
+            this IGlobalConfiguration configuration,
+            string nameOrConnectionString)
+        {
+            var storage = new PostgreSqlStorage(nameOrConnectionString);
+            configuration.UseStorage(storage);
+
+            return storage;
+        }
+
+        /// <summary>
+        /// Tells the bootstrapper to use PostgreSQL as a job storage
+        /// with the given options, that can be accessed using the specified
+        /// connection string or its name.
+        /// </summary>
+        /// <param name="configuration">Configuration</param>
+        /// <param name="nameOrConnectionString">Connection string or its name</param>
+        /// <param name="options">Advanced options</param>
+        public static PostgreSqlStorage UsePostgreSqlStorage(
+            this IGlobalConfiguration configuration,
+            string nameOrConnectionString,
+            PostgreSqlStorageOptions options)
+        {
+            var storage = new PostgreSqlStorage(nameOrConnectionString, options);
+            configuration.UseStorage(storage);
+
+            return storage;
+        }
+    }
 }