timer: Replace with sdeventplus/timer

This is aimed at replacing the ad-hoc timer implementation contained in
each of our openbmc daemons, with a single well-tested timer
implementation.

Tested:
    Compiled

Change-Id: I3e562ab72820442aa137a2d517e476192ea6c1bd
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/configure.ac b/configure.ac
index bd3ecac..e985a95 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,6 +16,8 @@
     AC_MSG_ERROR(["Requires phosphor-dbus-interfaces package."]))
 PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus],,
     AC_MSG_ERROR(["Requires sdbusplus package."]))
+PKG_CHECK_MODULES([SDEVENTPLUS], [sdeventplus],,
+    AC_MSG_ERROR(["Requires sdeventplus package."]))
 PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging],,\
     AC_MSG_ERROR(["Requires phosphor-logging package."]))