Immanuel/nnn: My build of nnn with minor changes - nnn

My build of nnn with minor changes

Arun Prakash Jana e5ad7d81ff PCRE 2 - fix check for filter match Kind contribution from uno20001: https://old.reddit.com/r/C_Programming/comments/etavho/file_manager_nnn_needs_help_with_pcre/fffk4wr/		5 lat temu
..
.clang-tidy	Refactor plugin handling	5 lat temu
dbg.h	Use : for filter case	5 lat temu
nnn.c	PCRE 2 - fix check for filter match	5 lat temu
nnn.h	Key F5 toggle hidden	5 lat temu