PMDK Version 2.0.0

This release :

• Removes libpmemlog, libpmemblk, btt, and their support in (lib)pmempool
• Removes Windows support
• Removes FreeBSD support
• Removes all pmem2_async operations (experimental)
• Removes PowerPC and ARM architectures (experimental) from regular validation
• Limits PMDK's static builds validation scope
• Removes Fedora and Debian from regular validation
• Adds reference platform provisioning instructions for PMDK testing
• Identifies and temporarily disables tests permanently or sporadically failing in some configurations:
  • obj_pmalloc_mt (#5726)
  • obj_sync (#5643, #5646, #5699, #5705, #5706, #5727)
  • pmem2_vm_reservation (#5707)
  • pmempool_sync (#5708)
• Re-enable pmem2_persist_valgrind tests previously excluded by mistake (#5855)