init: add host side parser for init

Create a host side parser for init such that init rc files can be
verified for syntax correctness before being used on the device.

Bug: 36970783
Test: run the parser on init files on host

Change-Id: I7e8772e278ebaff727057308596ebacf28b6fdda
diff --git a/init/action.cpp b/init/action.cpp
index 11335ca..f782b51 100644
--- a/init/action.cpp
+++ b/init/action.cpp
@@ -18,11 +18,16 @@
 
 #include <android-base/chrono_utils.h>
 #include <android-base/logging.h>
-#include <android-base/properties.h>
 #include <android-base/strings.h>
 
 #include "util.h"
 
+#if defined(__ANDROID__)
+#include <android-base/properties.h>
+#else
+#include "host_init_stubs.h"
+#endif
+
 using android::base::Join;
 
 namespace android {