Reordering of Custom Query Options

[amouledous1]

In the merged PR feat(CustomParams): Added support for custom query parameters #92 from Mar 29, 2020, the custom query options were added to the HttpParams after operations such as select, filter, etc. Not sure about anyone else, but our endpoints (in the event that they require custom parameters but also support select/filter/expand operations) require the custom query options to come first in the request, s.a:

http://localhost:61868/route/v1/Reports?effectiveDate=2018-06-30&$select=effectiveDate,startedDate&$filter=startedDate
As opposed to:
http://localhost:61868/route/v1/Reports?$select=effectiveDate,startedDate&$filter=startedDate&effectiveDate=2018-06-30
in which the custom param effectiveDate=2018-06030 will not be properly recognized at the end of the query string.

Can we reorder this and enforce it as the first parameter in the request? Thanks