scripts: modules: support west group feature
scripts: modules: support west group feature

West has introduced support for group tags in:
https://github.com/zephyrproject-rtos/west/pull/454

This means that manifest files might start containing groups.
Zephyr itself only requires west>=0.7.2 where groups are not supported
but other Zephyr based projects might start using the group feature.

When using a west version with group support, then only active projects
will be processed as Zephyr modules.

West versions without group support will consider all projects active.

Signed-off-by: Torsten Rasmussen <a7c5b1d5a1f41fce6edfa3f7c2392ae0c59deafe@nordicsemi.no>

Vudentz/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,nashif/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,finikorg/zephyr,Vudentz/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,galak/zephyr,nashif/zephyr,Vudentz/zephyr,Vudentz/zephyr,galak/zephyr,Vudentz/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr