72fdceb0d6
* Implement /block api endpoint displaying basic information * Add block inputs and kernels to the api output. * Add fields to BlockHeaderInfo and TxKernelPrintable * Add features debug string to TxKernelPrintable. * Return 400 and 404 statuses from the blocks api endpoint. * For the blocks api, return a 404 if a block is not found at the requested height * Add back hash to BlockHeader api output.