hipSYCL 0.9.0 - SYCL 2020 features coming to hipSYCL

hipSYCL 0.9.0 is the first release that incorporates features from the SYCL 2020 specification.
SYCL 2020 is a major update on the older SYCL 1.2.1. Its highlights include a substantial amount of features that originally came from oneAPI DPC++ and have since been contributed to the SYCL 2020 specification.