Support SQL params in query execution

[xiangfu0]

Support SQL params in query execution. Add below method into Connection struct: func (c *Connection) ExecuteSQLWithParams(table string, queryPattern string, params []interface{}) (*BrokerResponse, error)

Sample usage:

...
queryPattern := "SELECT * FROM table WHERE id = ?"
params := []interface{}{42}
brokerResp, err := conn.ExecuteSQLWithParams("baseballStats", queryPattern, params)
...