Implement process state filter (#1544/#1755)#1757

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BenBE wants to merge 3 commits intohtop-dev:mainfrom

BenBE:process-state-filter

Commits on Aug 14, 2025

Make Process_stateChar available for use by other modules
BenBE
committed
Added support for the '-S/--state' command-line option to filter processes by state.

melrovieira
and
BenBE
committed
Allow for spaces/comma in the argument
BenBE
committed