Zcash integrates Udon component into Zakura Common library in push toward 50,000 TPS

• —Udon is part of the Tachyon upgrade developed by Sean Bowe's team and Valar Group
• —Earlier Common optimizations cut transaction creation time from over 3 seconds to under 200 ms
• —Tachyon targets over 50,000 private TPS by merging transaction proofs
• —Actual network activity was about 6,200 private transactions per day in the week to Sept. 28