Add meson

Tested: Built and verified that unit test passes

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I37a4e99f725f771b3f0861e0e724f2e4c66d1adf
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..0fc2767
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1 @@
+option('tests', type: 'feature', description: 'Build tests')