readline: allow the use of Begin/End/Del/Insert and Ctrl+arrows

With the switch to using Bash as command line interpreter, the default
/etc/inputrc configuration file for readline doesn't allow the use of
some keys which are common.
This commit enables them to not change the user experience with previous
DEY versions.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>

https://jira.digi.com/browse/DEL-5623

meta-digi-dey/recipes-core/readline/readline/inputrc

@@ -0,0 +1,63 @@
+# /etc/inputrc - global inputrc for libreadline
+# See readline(3readline) and `info rluserman' for more information.
+
+# Be 8 bit clean.
+set input-meta on
+set output-meta on
+
+# To allow the use of 8bit-characters like the german umlauts, comment out
+# the line below. However this makes the meta key not work as a meta key,
+# which is annoying to those which don't need to type in 8-bit characters.
+
+# set convert-meta off
+
+# try to enable the application keypad when it is called.  Some systems
+# need this to enable the arrow keys.
+# set enable-keypad on
+
+# see /usr/share/doc/bash/inputrc.arrows for other codes of arrow keys
+
+# do not bell on tab-completion
+# set bell-style none
+
+# some defaults / modifications for the emacs mode
+$if mode=emacs
+
+# allow the use of the Home/End keys
+"\e[1~": beginning-of-line
+"\e[4~": end-of-line
+
+# allow the use of the Delete/Insert keys
+"\e[3~": delete-char
+"\e[2~": quoted-insert
+
+# mappings for "page up" and "page down" to step to the beginning/end
+# of the history
+# "\e[5~": beginning-of-history
+# "\e[6~": end-of-history
+
+# alternate mappings for "page up" and "page down" to search the history
+# "\e[5~": history-search-backward
+# "\e[6~": history-search-forward
+
+# # mappings for Ctrl-left-arrow and Ctrl-right-arrow for word moving
+"\e[1;5C": forward-word
+"\e[1;5D": backward-word
+"\e[5C": forward-word
+"\e[5D": backward-word
+"\e\e[C": forward-word
+"\e\e[D": backward-word
+
+# $if term=rxvt
+# "\e[8~": end-of-line
+# $endif
+
+# for non RH/Debian xterm, can't hurt for RH/DEbian xterm
+# "\eOH": beginning-of-line
+# "\eOF": end-of-line
+
+# for freebsd console
+# "\e[H": beginning-of-line
+# "\e[F": end-of-line
+
+$endif

meta-digi-dey/recipes-core/readline/readline_%.bbappend

@@ -0,0 +1,3 @@
+# Copyright (C) 2018 Digi International.
+
+FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"