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

My build of nnn with minor changes

QasimK 2645dd59c9 Document second method of adding quitcd to fish		pirms 6 gadiem
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quitcd.bash	Improved portability on MacOS (#86)	pirms 7 gadiem
quitcd.csh	Option -c is gone	pirms 6 gadiem
quitcd.fish	Document second method of adding quitcd to fish	pirms 6 gadiem
quitcd.zsh	Change name to scripts directory	pirms 7 gadiem