Refactor the wait/signalSemaphore entry points to be on the Semaphore object Convert the texture ID parameters into optimized vectors of Texture objects. BUG=angleproject:3656 Change-Id: Iffe824ade2a919c9771642ae501ff04712ca43ce Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1688505 Reviewed-by: Michael Spang <spang@chromium.org>