meson: Add alternative build system

For now both autotools and meson will be maintained side by side.
Eventually we should remove the autotools build system.

Change-Id: I04382b17d5267ee218e2658fc163da17853f637a
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 0000000..86bc7fc
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1,2 @@
+option('tests', type: 'feature', description: 'Build tests')
+option('examples', type: 'boolean', value: true, description: 'Build examples')