Add Generic version of db.TableExists<T>()

Author: mythz

src/ServiceStack.OrmLite/OrmLiteWriteConnectionExtensions.cs

@@ -16,6 +16,18 @@ public static bool TableExists(this IDbConnection dbConn, string tableName)
             return dbConn.GetDialectProvider().DoesTableExist(dbConn, tableName);
         }
 
+        /// <summary>
+        /// Checks whether a Table Exists. E.g:
+        /// <para>db.TableExists&lt;Person&gt;()</para>
+        /// </summary>
+        public static bool TableExists<T>(this IDbConnection dbConn)
+        {
+            var dialectProvider = dbConn.GetDialectProvider();
+            var modelDef = typeof(T).GetModelDefinition();
+            var tableName = dialectProvider.NamingStrategy.GetTableName(modelDef.ModelName);
+            return dialectProvider.DoesTableExist(dbConn, tableName);
+        }
+
         /// <summary>
         /// Create DB Tables from the schemas of runtime types. E.g:
         /// <para>db.CreateTables(typeof(Table1), typeof(Table2))</para>