[FEATURE] Add top-level endpoints to Title-II

[sandeep-ps]

A title level endpoint can help with displaying a map at the title level without having to calculate total values on the client side. It can also help with easy debugging to understand if something changes at the title level. We don't have such an endpoint for Title-2. For Crop Insurance and SNAP, since there is only one program under the respective titles, the current endpoints could be used to display a title-level map/debugging.

Add endpoints:

GET /pdl/titles/title-ii/summary
GET /pdl/titles/title-ii/state-distribution

The response structure can be similar to the following, but should include all attributes (not just totalPaymentInDollars and totalRecipients) from Title-2 data.

{
    "2014": [
        {
            "totalPaymentInDollars": 938565060.0,
            "totalRecipients": 70670,
            "state": "IA"
        },
        {
            "totalPaymentInDollars": 710358926.2,
            "totalRecipients": 58943,
            "state": "NE"
        },
        {
            "totalPaymentInDollars": 701288133.3,
            "totalRecipients": 47081,
            "state": "MN"
        }
     ....
]}

When calculating the title level summaries for Title-2 for the above endpoints, from CRP, only the "Total CRP" sub-programs' data should be used. This is because due to the way that program is organized, other sub programs in that contain repeated and overlapping information and the "Total CRP" sub program contains the consolidated numbers for that program.