add meson build

most the other openbmc projects are turning into meson projects, so
let's hop on that meson train.

Tested: Builds as expected

Change-Id: I06b6f9e28e27bf7922f42f93756efb98bdb40b2a
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/.gitignore b/.gitignore
index 0662a7b..3127bd3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,5 @@
 runSensorTests
 ipmi-allowlist.hpp
 check-code-coverage*
+subprojects/*
+!subprojects/*.wrap