Adding `Restart=on-failure` to all openharmony services

weston service is hanging at startup (SIGHUP) on raspberrypi4-64
adding `Restart=always` to systemd unit to restart
weston service when hanging. `Restart=on-failure` is not enough here.

Signed-off-by: Francesco Pham <francesco.pham@huawei.com>

Signed-off-by: Esben Haabendal <esben@geanix.com>

This change turns the OpenHarmony systemd services into dummy services
that doesn't start them. Instead, the preinit script will check for
these services state and start the corresponding services if their
systemd unit are enabled.

Signed-off-by: Thierry Escande <thierry.escande@huawei.com>

These are services using the System Ability framework through the
executable sa_main. These services depend on and are started after the
System Ability Manager service (samgr).

Most of them are noop for now. No process is created after sa_main exits
for all of these services.

Signed-off-by: Thierry Escande <thierry.escande@huawei.com>

This is initial work on splitting up OpenHarmony 3.1 components into individual
packages, and integrating the services of these as systemd services.

It is not complete, as we are shifting focus to OpenHarmony 3.0(.1) for now.

Signed-off-by: Esben Haabendal <esben.haabendal@huawei.com>