9dac4d69e0 Implement CheckedSum for Weight iterator (yancy)
0dbcd09bbc Move CheckedSum trait to crate root (yancy)
Pull request description:
* Move CheckedSum to the crate root so that other types can be added
* Add Weight to CheckedSum
ACKs for top commit:
tcharding:
ACK 9dac4d69e0
apoelstra:
ACK 9dac4d69e0f142e9a2dc4b61ea49365a8cae3f4b; successfully ran local tests
Tree-SHA512: 3e4b7f79074e23493ccd17a026542081f0d7a811f4f35edb7994ada95bf414a166531f142ad4986d27fcec448209b2ffa56813b495b5df6b6e8fcd589392e0c1