### Is there an existing issue for this?

- [X] I have searched the existing issues

### Enhancement description

Based on [customer request](https://localstack-community.slack.com/archives/C0598EHPT1N).
Implement operation `scan` and `query` for global tables in DynamoDB service.

Test sample:

```shell
# Create a table
awslocal dynamodb create-table --table-name global01 --key-schema AttributeName=id,KeyType=HASH --attribute-definitions AttributeName=id,AttributeType=S --billing-mode PAY_PER_REQUEST --region ap-south-1

#Create replicas
awslocal dynamodb update-table --table-name global01  --replica-updates '[{"Create": {"RegionName": "eu-central-1"}}, {"Create": {"RegionName": "us-west-1"}}]'  --region ap-south-1


# Table can be operated on in all replicated regions
awslocal dynamodb list-tables --region eu-central-1

awslocal dynamodb put-item --table-name global01 --item '{"id":{"S":"foo"}}' --region eu-central-1
awslocal dynamodb describe-table --table-name global01 --query 'Table.ItemCount' --region ap-south-1

# Get all replicas
awslocal dynamodb describe-table --table-name global01 --query 'Table.Replicas' --region us-west-1


# Query in all regions
awslocal dynamodb query --table-name global01 --key-condition-expression 'id = :id' --expression-attribute-values '{":id":{"S":"foo"}}' --region ap-south-1
awslocal dynamodb query --table-name global01 --key-condition-expression 'id = :id' --expression-attribute-values '{":id":{"S":"foo"}}' --region eu-central-1
awslocal dynamodb query --table-name global01 --key-condition-expression 'id = :id' --expression-attribute-values '{":id":{"S":"foo"}}' --region us-west-1
```


### 🧑‍💻 Implementation

_No response_

### Anything else?

_No response_
self,
        request_items,
        existing_items,
        unprocessed_put_items: List,
        unprocessed_delete_items: List,
    ):
        records = []
        record = self.get_record_template()
        unprocessed_items = {"PutRequest": {}, "DeleteRequest": {}}
        i = 0
        for table_name in sorted(request_items.keys()):
            
            stream_spec = dynamodb_get_table_stream_specification(
                account_id=get_aws_account_id(),
                region_name=aws_stack.get_region(),
                table_name=table_name,
            )
            if stream_spec:
                record["dynamodb"]["StreamViewType"] = stream_spec["StreamViewType"]
            for request in request_items[table_name]:
                put_request = request.get("PutRequest")
                if put_request:
                    if existing_items and len(existing_items) > i:
                        existing_item = existing_items[i]
                        keys = SchemaExtractor.extract_keys(