systemd/systemd: rework bootstrap logic and enable more features

...url-util-use-curl_getdate-instead-of-implementing-h.patch

extra-repos/systemd/systemd/APKBUILD

...pos/systemd/systemd/systemd-networkd-systemd.post-install

...os/systemd/systemd/systemd-networkd-systemd.pre-deinstall

extra-repos/systemd/systemd/systemd-networkd.pre-install

...pos/systemd/systemd/systemd-resolved-systemd.post-install

...os/systemd/systemd/systemd-resolved-systemd.pre-deinstall

extra-repos/systemd/systemd/systemd-resolved.pre-install

...os/systemd/systemd/systemd-timesyncd-systemd.post-install

...s/systemd/systemd/systemd-timesyncd-systemd.pre-deinstall

extra-repos/systemd/systemd/systemd-timesyncd.pre-install

extra-repos/systemd/systemd/systemd.pre-install

extra-repos/systemd/systemd/wired.network