Gregor Jasny authored Jul 29, 2018 and Brad King committed Aug 01, 2018

Add `XCODE_SCHEME_*` target properties and associated variables
`CMAKE_XCODE_SCHEME_*` to initialize them on target creation.
Map each target property value to an associated Xcode scheme entry.

Co-Author: Martin Sander <mail@martin-sander.de>
Fixes: #17919