Add Itron 100WR
Add Itron 100WR

When using SCM+ the 100WR has an id of  0xAB / 171

`{Time:2021-06-12T18:56:42.581 SCM+:{ProtocolID:0x1E EndpointType:0xAB EndpointID:  68731188 Consumption:     23792 Tamper:0x2500 PacketCRC:0xC8D2}}`

See bottom right corner of page 2 https://www.itron.com/-/media/feature/products/documents/spec-sheet/100w-water-endpoint-web-101020sp07.pdf
bemasher/rtlamr,bemasher/rtlamr