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

My build of nnn with minor changes

Arun Prakash Jana 8e92ea8ad6 Update copyright year		pirms 4 gadiem
..
.clang-tidy	Limit lines of code per func to 900	pirms 4 gadiem
dbg.h	Update copyright year	pirms 4 gadiem
icons-in-terminal.h	Add nerdfont defs file and normalize vars (#722)	pirms 4 gadiem
icons-nerdfont.h	Add nerdfont defs file and normalize vars (#722)	pirms 4 gadiem
icons.h	Color for vtt sub icons	pirms 4 gadiem
nnn.c	Update copyright year	pirms 4 gadiem
nnn.h	Update copyright year	pirms 4 gadiem
qsort.h	Add support for Alexey Tourbin's QSORT code (#708)	pirms 4 gadiem