New release of pspg pager

I redesigned some work with mouse - ncurses native implementation is simple, but slow by design.

A default layout of pspg is based on old Norton Commander layout. It is good for beginners, because almost all controls are visible. Probably, when you work with pspg longer time, then you prefer more visible content against auxiliary lines. The lines (bars) can be disabled now - you can run pspg with option --no-bars. The pspg is available from github https://github.com/okbob/pspg