Implement list table details to include specific CrateDB table options

[autophagy]

This should address #84.

When using getOptions() with a Table that was retrieved from the schema manager, the driver will now load the Table's options, such as sharding and partition information.

<?php
use Doctrine\DBAL\Schema\Table;

$params = array(
    'driverClass' => 'Crate\DBAL\Driver\PDOCrate\Driver',
    'user' => 'crate',
    'host' => 'localhost',
    'port' => 4200
);
$connection = \Doctrine\DBAL\DriverManager::getConnection($params);
$schemaManager = $connection->getSchemaManager();
$platform = $connection->getDatabasePlatform();

$options = [];
$options['sharding_routing_column'] = 'id';
$options['sharding_num_shards'] = 6;
$options['partition_columns'] = ['parted', 'date'];
$options['table_options'] = [];
$options['table_options']['number_of_replicas'] = '0-2';
$options['table_options']['write.wait_for_active_shards'] = 'ALL';

$table = new Table('mytable', [], [], [], 0, $options);
$table->addColumn('id', 'integer');
$table->addColumn('parted', 'integer');
$table->addColumn('date', 'timestamp');

$schema = $schemaManager->createSchema();

foreach ($schema->getTables() as $table) {
    print_r($table->getOptions());
}

Results in:

Array
(
    [create_options] => Array
        (
        )

    [sharding_routing_column] => id
    [sharding_num_shards] => 6
    [partition_columns] => Array
        (
            [0] => parted
            [1] => date
        )

    [table_options] => Array
        (
            [codec] => default
            [routing.allocation.include] => 
            [routing.allocation.require] => 
            [routing.allocation.exclude] => 
            [routing.allocation.enable] => all
            [routing.allocation.total_shards_per_node] => -1
            [mapping.total_fields.limit] => 1000
            [refresh_interval] => 1000
            [translog.flush_threshold_size] => 536870912
            [translog.sync_interval] => 5000
            [translog.durability] => REQUEST
            [blocks.metadata] => 
            [blocks.read] => 
            [blocks.read_only] => 
            [blocks.write] => 
            [merge.scheduler.max_thread_count] => 
            [merge.scheduler.max_merge_count] => 
            [store.type] => fs
            [unassigned.node_left.delayed_timeout] => 60000
            [write.wait_for_active_shards] => ALL
            [warmer.enabled] => 1
            [number_of_replicas] => 0-2
            [column_policy] => strict
        )

)