Added support for the following hardware accelerators/GPUs:

• More Adreno GPUs thanks to the panfrost linux driver
• Mac GPUs (tested on M1 and M2 by the community)
• Huawei Ascend accelerators

Bugfixes and improvements:

• Don't call handlers for GPUs that are marked as not to be monitored
• Fix crash when the configuration file path could not be discovered through user environment variables (XDG_HOME etc)