Renaming 'get_cmd_switch' and 'get_cmd_arg' to 'have_cmd_arg' and
'cmd_arg' respectively blends in nicely with the now omnipresent pattern
with 'have_[spec|board|installed|include]'.
This commit deprecates 'get_cmd_switch' and 'get_cmd_arg', which will be
removed in a later commit.
Issue #5432
The plugin was tested with ALL4176 but should support all modern Allnet
MSR devices according to the documentation
https://service.allnet.de/image-ftp/ftp/pub/allnet/MSR/JSON/JSON_MSR.zip
It works just like the existing powerplug plugins by
RUN_OPT += --include power_on/allnet --include power_off/allnet
and uses the following parameters
--power-on-allnet-host network address of device
--power-on-allnet-user user for device
--power-on-allnet-password password for device
--power-on-allnet-port target port/socket of device
--power-off-allnet-host network address of device
--power-off-allnet-user user for device
--power-off-allnet-password password for device
--power-off-allnet-port target port/socket of device
