Add Timer class

This class is used to call a callback function
when the timer expires.  It can be one shot, or repeating.

Copied from the phosphor-fan-presence repository.

Change-Id: I9d63c2e6fd550286a2a5360e1e8d13f6a3c25923
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/bootstrap.sh b/bootstrap.sh
new file mode 100755
index 0000000..4c0b0f5
--- /dev/null
+++ b/bootstrap.sh
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+AUTOCONF_FILES="Makefile.in aclocal.m4 ar-lib autom4te.cache compile \
+        config.guess config.h.in config.h.in~ config.sub configure depcomp \
+        install-sh ltmain.sh missing *libtool"
+
+case $1 in
+    clean)
+        test -f Makefile && make maintainer-clean
+        for file in ${AUTOCONF_FILES}; do
+            find -name "$file" | xargs -r rm -rf
+        done
+        exit 0
+        ;;
+esac
+
+autoreconf -if
+echo 'Run "./configure ${CONFIGURE_FLAGS} && make"'