Install service unit files, busconfig and udev rules from the package.

This change required as a part of privilege separation work:
  https://github.com/openbmc/openbmc/issues/3383

The dependant change in openbmc repo:
  https://gerrit.openbmc-project.xyz/c/openbmc/openbmc/+/40359

Signed-off-by: Anton D. Kachalov <gmouse@google.com>
Change-Id: I89aec71b446e0b7be40a10e1cd94ea16d891a277
diff --git a/xyz.openbmc_project.Hwmon@.service b/xyz.openbmc_project.Hwmon@.service
new file mode 100644
index 0000000..b930b57
--- /dev/null
+++ b/xyz.openbmc_project.Hwmon@.service
@@ -0,0 +1,10 @@
+[Unit]
+Description=Phosphor Hwmon Poller
+ConditionFileNotEmpty=/etc/default/obmc/hwmon/%I.conf
+After=xyz.openbmc_project.ObjectMapper.service
+
+[Service]
+Restart=on-failure
+ExecStart=/usr/bin/env phosphor-hwmon-readd -o %I
+SyslogIdentifier=phosphor-hwmon-readd
+EnvironmentFile=/etc/default/obmc/hwmon/%I.conf