Add meson build

This commit is to add meson.build.
And later, we will remove Autotools and replace it with meson build.

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I3107491093a6b69f966bab6eeb4f2d7581bfa186
diff --git a/subprojects/sdbusplus.wrap b/subprojects/sdbusplus.wrap
new file mode 100644
index 0000000..d470130
--- /dev/null
+++ b/subprojects/sdbusplus.wrap
@@ -0,0 +1,3 @@
+[wrap-git]
+url = https://github.com/openbmc/sdbusplus.git
+revision = HEAD