[zcash/zcash] Update CreateNewContextualCMutableTransaction for Sapling (#3239)

:hourglass: Testing commit a39d218ddf656de7a7165a64efc9e722469d4cc9 with merge 72532ff080187b043fdde31b9874678854d8a893…

This post was last modified on May 7, 2018, 8:20 pm