2 Sep 2025 "Victory II" for Python 3.4 - 3.10

PyPNM upgraded to version 2. Upgrade includes numerous internal changes aimed to save resources, i.e.:

• using mmap instead of direct reading;
• using generators wherever possible.

Module input and output types and structures remain the same as for 9 May "Victory", making ver. 2 fully interchangeable with ver. 1.