Batch Auctions for Tasks

* Send task auctions in one request

[#84708268]

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
Batch LRP Auction requests

[#84708268]

Signed-off-by: Alex Suraci <asuraci@pivotal.io>
Start LRP Auction with all indices in a request

* Make LRPs match Tasks
* Include all indices to start within a request

[#84708268]

Signed-off-by: Alex Suraci <asuraci@pivotal.io>