v0.4.8

AMDGPU v0.4.8

Diff since v0.4.7

Merged pull requests:

• ROCSignal: Pool signals in ctor (#369) (@jpsamaroo)
• Reduce allocations (#376) (@pxl-th)
• Report and exit on memory fault (#379) (@jpsamaroo)
• versioninfo: Indicate if using JLLs or System (#381) (@jpsamaroo)
• ROCSignal: Disable IPC by default (#383) (@jpsamaroo)