Refactoring database creation, adding sql syntax provider to account for differences in syntax between sql, ce and mysql.

Adding MySql unit test.

src/Umbraco.Core/Persistence/SqlSyntax/MySqlSyntaxProvider.cs

@@ -0,0 +1,54 @@
+using Umbraco.Core.Persistence.SqlSyntax.ModelDefinitions;
+
+namespace Umbraco.Core.Persistence.SqlSyntax
+{
+    internal static class MySqlSyntax
+    {
+        public static ISqlSyntaxProvider Provider { get { return MySqlSyntaxProvider.Instance; } }
+    }
+
+    internal class MySqlSyntaxProvider : SqlSyntaxProviderBase<MySqlSyntaxProvider>
+    {
+        public static MySqlSyntaxProvider Instance = new MySqlSyntaxProvider();
+
+        private MySqlSyntaxProvider()
+        {
+            AutoIncrementDefinition = "AUTO_INCREMENT";
+            IntColumnDefinition = "int(11)";
+            BoolColumnDefinition = "tinyint(1)";
+            TimeColumnDefinition = "time";
+            DecimalColumnDefinition = "decimal(38,6)";
+            GuidColumnDefinition = "char(32)";
+            DefaultStringLength = 255;
+            
+            InitColumnTypeMap();
+
+            DefaultValueFormat = " DEFAULT '{0}'";
+        }
+
+        public override string GetQuotedTableName(string tableName)
+        {
+            return string.Format("`{0}`", tableName);
+        }
+
+        public override string GetQuotedColumnName(string columnName)
+        {
+            return string.Format("`{0}`", columnName);
+        }
+
+        public override string GetQuotedName(string name)
+        {
+            return string.Format("`{0}`", name);
+        }
+
+        public override bool DoesTableExist(Database db, string tableName)
+        {
+            var result =
+                db.ExecuteScalar<long>("SELECT COUNT(*) FROM INFORMATION_SCHEMA.TABLES " +
+                "WHERE TABLE_NAME = @TableName AND " +
+                "TABLE_SCHEMA = @TableSchema", new { TableName = tableName, TableSchema = db.Connection.Database });
+
+            return result > 0;
+        }
+    }
+}