Support HadoopCatalog for Iceberg table

We just supported HadoopTable api to create Iceberg table in Impala now, it's apparently not enough, so we preparing to support HadoopCatalog. The main design is to add a new table property named 'iceberg.catalog', and default value is 'hadoop.tables', we implement 'hadoop.catalog' to supported HadoopCatalog api. We may even support 'hive.catalog' in the future.