Adds json response tests for txn group deltas. Because of the issues w/ the json msgp decoder, we've decided to use the json response format in the JS SDK. This adds response tests for that under a new test tag.
Because of the recent sandbox changes we're now using conduit/indexer to ingest data from dev mode algod. It seems like this introduces slightly more delay in retrying block gets because there are some failures retrieving data in the application tests after the 500 millisecond sleeps. See this go-algorand-sdk test run for example. I've double the wait time to ensure data propagates before the test runs.
Two things in this PR
500
millisecond sleeps. See this go-algorand-sdk test run for example. I've double the wait time to ensure data propagates before the test runs.