Provide configurable properties for max page size and max number of included resources on search results

[michaelwschroeder]

Is your feature request related to a problem? Please describe.
The maximum page size for a search request is currently set to 1000, and is not configurable. Also, there is no limit on the number of included resources returned in a page for _include and _revinclude searches.

Describe the solution you'd like
Configuration properties should be provided for both the maximum page size for a search request, as well as the maximum number of included resources returned in a page for _include and _revinclude searches.

Describe alternatives you've considered
None

Acceptance Criteria
At least one acceptance criteria is included.

1. GIVEN a configuration property for max page size is set
   WHEN a search is executed that has more results than the configured max page size
   THEN verify that the search results are paged and the page size is limited to the max page size configured
2. GIVEN a configuration property for max number of included resources is set
   WHEN a _revinclude or _include search is executed that has more include results for a page than the configured max number of included resources
   THEN verify that the search fails

Additional context
Add any other context or screenshots about the feature request here.

[lmsurpre]

If someone sets these too high, there could be memory issues and/or response time issues

[michaelwschroeder]

I verified this issue by testing the following scenarios while running my local FHIR server with the latest code level:

1. set maxPageSize to less than defaultPageSize and executed a search with no _count parameter - the search returned maxPageSize results and the self link contained a _count set equal to maxPageSize
2. set maxPageSize to greater than defaultPageSize and executed a search with no _count parameter - the search returned defaultPageSize results and the self link contained a _count set equal to defaultPageSize
3. set maxPageSize to greater than defaultPageSize and executed a search with _count parameter value set to greater than maxPageSize - the search returned maxPageSize results and the self link contained a _count set equal to maxPageSize
4. set maxPageSize to greater than defaultPageSize and executed a search with _count parameter value set to less than maxPageSize - the search returned _count results and the self link contained a _count set equal to input _count
5. set maxPageIncludeCount and executed a search that returned more than maxPageIncludeCount - the search returned an error as expected
6. set maxPageIncludeCount and executed a search that returned less than maxPageIncludeCount - the search returned included results as expected