meson: Switch autoconf build to meson

Summary:
- Add meson build flow.
- Remove the options not being configured from yocto as configure
  args and add them as constants/define in settings_manager.hpp

Tested:
- autotools build passes.
- meson build passes with "ninja -C build".

Change-Id: Iaa7704886cdcd5481a04bae77e02df2c6a53aee9
Signed-off-by: Jagpal Singh Gill <paligill@gmail.com>
diff --git a/subprojects/sdbusplus.wrap b/subprojects/sdbusplus.wrap
new file mode 100644
index 0000000..7b076d0
--- /dev/null
+++ b/subprojects/sdbusplus.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+url = https://github.com/openbmc/sdbusplus.git
+revision = HEAD
+
+[provide]
+sdbusplus = sdbusplus_dep