meson support: create meson.build files

This commit contains the meson.build files necessary to build the
project and unit tests. The normal procedure is to run the command
'meson build' followed by ninja -C build. Additionally, service files
are copied to remove autoconf-style naming convention (they cannot be
  removed before autoconf files are removed).

Signed-off-by: Mike Capps <mikepcapps@gmail.com>
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I6cf8f5c1c923a198ad2fb4638843645479fd0498
diff --git a/presence/test/fallbacktest.cpp b/presence/test/fallbacktest.cpp
index daa0b50..de4a54d 100644
--- a/presence/test/fallbacktest.cpp
+++ b/presence/test/fallbacktest.cpp
@@ -15,7 +15,7 @@
 {
 namespace presence
 {
-void setPresence(const Fan& fan, bool newState)
+void setPresence(const Fan&, bool newState)
 {
     if (newState)
     {
@@ -68,7 +68,7 @@
     // Validate a single sensor.
     // Validate on->off->on.
     pstate = -1;
-    Fan fan{"/path", "name"};
+    Fan fan{"/path", "name", 0};
     TestSensor ts;
     ts._present = true;
     std::vector<std::reference_wrapper<PresenceSensor>> sensors{ts};
@@ -99,7 +99,7 @@
     // Validate both sensors on->off->on
 
     pstate = -1;
-    Fan fan{"/path", "name"};
+    Fan fan{"/path", "name", 0};
     TestSensor ts1, ts2;
     ts1._present = true;
     ts2._present = true;