Add a helper with more concise interface to skip sticky query params

[arthurmde]

Currently, the best way to skip the default behavior of sticky query params is by using the merge-query-params as follows:

{{link-to "Link!" "parent.child"
	(merge-query-params
		(reset-query-params route="another.route")
		(create-query-params childQp="only-child-qp-is-set")
	)
}}

I think it would be amazing to have a cleaner, more concise way to do the same task. I suggest the creation of a new helper with the following interface:

{{link-to "Link!" "another.route"
	(new-helper-query-params route="another.route" param1="new-value-to-param1")
}}

Such helper would exist with the single purpose of supporting links without sticky query params.