Add static Process class and improved dump output

Test: as follows
    - built, flashed, booted
    - adb shell dumpsys netd shows new output
Change-Id: Ib78dbdc982f5db747bff445db21b8408c9c407cc
diff --git a/server/NetdNativeService.cpp b/server/NetdNativeService.cpp
index 60452d5..70aad71 100644
--- a/server/NetdNativeService.cpp
+++ b/server/NetdNativeService.cpp
@@ -38,6 +38,7 @@
 #include "InterfaceController.h"
 #include "NetdConstants.h"
 #include "NetdNativeService.h"
+#include "Process.h"
 #include "RouteController.h"
 #include "SockDiag.h"
 #include "UidRanges.h"
@@ -139,6 +140,7 @@
         return NO_ERROR;
     }
 
+    process::dump(dw);
     dw.blankline();
     gCtls->netCtrl.dump(dw);
     dw.blankline();