Add schemes for ANGLE to Xcode project
<rdar://problem/69062082>
Created attachment 410991 [details] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
Committed r269292: <https://trac.webkit.org/changeset/269292>
Created attachment 413535 [details] Correct patch Uploading a patch that doesn't break STP builds.
Reopening to attach new patch.
Created attachment 414641 [details] EWS test
Committed r270062: <https://trac.webkit.org/changeset/270062>