kbd: Update to version 2.6.4

kbd: Update to version 2.6.4

- Update from version 2.5.1 to 2.6.4
- Update of rootfile
- Changelog
    2.6.4
	    Use AX_ADD_FORTIFY_SOURCE to avoid redefining _FORTIFY_SOURCE by
	     @thesamesam in #103
	    Do not look up include files in the current working directory by
	     @DaanDeMeyer in #105
    2.6.3
	libkfont:
	    Don't look for fonts in the current directory.
	showkey:
	    Add parameter to allow to change timeout.
	po:
	    Update po files.
    2.6.2
	loadkeys:
	    Don't look for keymap in the current directory.
	keymaps:
	    Add colemak mod-dh keymaps.
    2.6.1
	libkfont:
	    Fix font saving from linux kernel if KD_FONT_OP_GET_TALL is available.
	    Respect font height when writing psf2 header.
	keymaps:
	    Create new 'mac-fr' layout for contemporary French Macs.
    2.6.0
	libkfont:
	    Leverage KD_FONT_OP_GET/SET_TALL font operations. The new
	    KD_FONT_OP_GET/SET_TALL font operations allow to load fonts taller
	    than 32 pixels by dropping the VGA-specific vertical pitch limitation
	    (requires kernel 6.2 or later).
	    Use threadsafe strtok_r.
	    Increase soname version.
	setvtrgb:
	    Fix read from pipe. The pipe is not rewindable, but we don't really
	    need to rewind() but we need to unread one character.
	keymaps:
	    i386/dvorak/dvorak-de.map: Add dvorak-de.map from console-data.
	    i386/qwerty/is-latin1.map: the circumflex should also be available in
	    its original level-3 position.
	    i386/qwerty/la-latin1.map: Convert the characters expressed in Latin-1
	    to the named constants, to ease up transition to Unicode.
	    pine/en.map: New version of pinephone keyboard map file.
	unimaps:
	    Add mapping for U+25CF. The unicode maps in font files like
	    eurlatgr.psfu and cp850-8x16.psfu have an entry for U+25CF, but the
	    plaintext unimap files do not.
	tests:
	    Use strace to track syscalls. Now strace is powerful enough to show
	    ioctls specific to console configuration.
	po:
	    Update translations (from translationproject.org).

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Michael Tremer <michael.tremer@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>