luajit: add host variant

the goal is to use host-luajit with pkg-luarocks
when luajit is on the selected luainterpreter for the target

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
luainterpreter: add host variant

host-luainterpreter is host-lua or host-luajit

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
luarocks: allow to work with host-luainterpreter

when we embed luajit on target,
we use luarocks with host-luajit instead of host-lua,
in order to use the same interpreter on the both side.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Try-Tiny: add host
Plack: all packages
moo: all packages
dancer2: all packages

TT: PERL_TEMPLATE_TOOLKIT_CONF_OPT = "TT_XS_ENABLE=n"
network interface eth0
defconfig
demo

set BR2_ROOTFS_OVERLAY with $(BR2_EXTERNAL)/overlay/
dancer2 skeleton

$ dancer2 gen -a MyWeb::App
Dancer2 as service
BR demo
add Chart-Plot-Tagged
add ntp in defconfig
update plot
user guest