Add range to topic directive with range data fetcher

[raminqaf]

Closes #57 and #59

[torbsto]

I think it would be nice to also have some basic validation rules for the range arguments, e.g. only possible with list return type, key field must be set etc.

[raminqaf]

@torbsto isn't that what you mean:

quick/gateway/src/main/java/com/bakdata/quick/gateway/directives/topic/rule/fetcher/RangeFetcherRule.java

Lines 72 to 80 in 6d4e23e

	@Override
	public boolean isValid(final TopicDirectiveContext context) {
	return context.getTopicDirective().hasKeyArgument()
	&& context.getTopicDirective().hasRangeFrom()
	&& context.getTopicDirective().hasRangeTo()
	&& context.isListType()
	&& context.getEnvironment().getElement().getArguments().size() == 3
	&& !context.getParentContainerName().equals(GraphQLUtils.SUBSCRIPTION_TYPE);
	}

[torbsto]

No, this checks if the DataFetcher can be applied to the given field. I'm talking about validation rules, that detect incorrect usages of the topic directive as implemented in https://github.com/bakdata/quick/tree/master/gateway/src/main/java/com/bakdata/quick/gateway/directives/topic/rule/validation