A maintenance release with some bug fixes and improvements. There are no changes in the library API.

• Fixed an assert failing when detailed JSON dump was made while a custom pool was present with specified string name (#36, thanks @rbertin-aso).
• Fixed image height calculation in JSON dump visualization tool "GpuMemDumpVis.py" (#37, thanks @rbertin-aso).
• Added JSON Schema for JSON dump format - see file "tools\GpuMemDumpVis\GpuMemDump.schema.json".
• Added documentation section "Resource reference counting".