Updates to implement finish, process MultiSmartData for v1.2 (Mobile)...

Updates to implement finish, process MultiSmartData for v1.2 (Mobile) SmartData and MultiValue workflow support.

bin/smartdata/Series.php

@@ -183,9 +183,9 @@ class Series
       $sd   = new self(
                 $json->version,
                 $json->unit??0,
-                $json->x ?? 0,
-                $json->y ?? 0,
-                $json->z ?? 0,
+                $json->x,
+                $json->y,
+                $json->z,
                 $json->r ?? 0,
                 $json->t0 ?? 0,
                 $json->t1 ?? ($json->tf ?? 0),
@@ -221,9 +221,9 @@ class Series
         return new self(
                 $json->version,
                 $json->unit,
-                $json->x,
-                $json->y,
-                $json->z,
+                $json->x ?? 0,
+                $json->y ?? 0,
+                $json->z ?? 0,
                 $json->r ?? 0,
                 $json->t0 ?? 0,
                 $json->t1 ?? ($json->tf ?? 0),