Script for run Nfc activity from Termux:API (termux#113)

fix path issue when installing scripts

Merge pull request termux#111 from landfillbaby/master

depend on util-linux getopt

suggestion: remove long icon list

termux-notification --help-actions update for direct reply (termux-ap…

…i #320)

termux-job-scheduler: Add --persisted option, see termux/termux-api#316

shellcheck most scripts

one thing left to do is unifying and standardizing the way the argument
string for the final call to termux-api is built.

Merge pull request termux#84 from bndeff/usbapi

Add a USB API compatible with libusb

termux-notification: add --help-actions

fixes termux#37

termux-job-scheduler: fix doc