Vulkan Optimizations and Fixes (#8959)
* Optimize Vulkan REPEAT performance
* Use Vulkan GLSL fused multiply-add instruction where possible
* Add GGML_VULKAN_PERF option to output performance data per operator
* Rework and fix Vulkan descriptor set and descriptor pool handling
* Fix float32 concat f16 shader validation error
* Add Vulkan GROUP_NORM eps parameter
* Fix validation error with transfer queue memory barrier flags
* Remove trailing whitespaces
