Return DiamondsValue with get-single-post API call

[brootle]

Right now get-single-post API request returns DiamondCount but in order to get total value of how much that is earned in $DESO we need to make separate get-diamonds-for-post API request that will return a list of diamonds with DiamondLevel for each diamond given to the post. This operation becomes impossible when trying to get diamonds data for posts that have a lot of diamonds, the more diamonds post has the more time it takes to retrieve data. In this example it takes 10+ seconds to get data on every 25 diamonds.

So this is my idea. Add DiamondsValue to get-single-post API request. Apps can use this data to effectively show to users how much money were made with different posts. And apps built on DeSo can use that for their marketing 🔥