generateRandom() does not support generating random Date32 value:

```
SELECT *
FROM generateRandom('Date32 Date32', NULL, 10, 2)
LIMIT 10

Received exception from server (version 21.11.5):
Code: 48. DB::Exception: Received from localhost:9000. DB::Exception: The 'GenerateRandom' is not implemented for type Date32: While executing GenerateRandom. (NOT_IMPLEMENTED)
```

#include <Storages/IStorage.h>
#include <Storages/ColumnsDescription.h>
#include <Storages/StorageGenerateRandom.h>
#include <Storages/StorageFactory.h>
#include <Processors/Sources/SourceFromSingleChunk.h>
#include <QueryPipeline/Pipe.h>
#include <Parsers/ASTLiteral.h>
#include <DataTypes/DataTypeTuple.h>
#include <DataTypes/DataTypeEnum.h>
#include <DataTypes/DataTypeNullable.h>
#include <DataTypes/DataTypeDateTime64.h>
#include <DataTypes/DataTypeDecimalBase.h>
#include <DataTypes/DataTypeArray.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypeFixedString.h>
#include <DataTypes/NestedUtils.h>
#include <Columns/ColumnArray.h>
#include <Columns/ColumnFixedString.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnVector.h>
#include <Columns/ColumnNullable.h>
#include <Columns/ColumnTuple.h>
#include <Common/SipHash.h>
#include <Common/randomSeed.h>