merged get full S.M.A.R.T data, updated docs

docs/filesystem.html

@@ -235,6 +235,16 @@
                     <td></td>
                     <td>S.M.A.R.T Status (see Known Issues)</td>
                   </tr>
+                  <tr>
+                    <td></td>
+                    <td>[0].smartData</td>
+                    <td>X</td>
+                    <td></td>
+                    <td></td>
+                    <td></td>
+                    <td></td>
+                    <td>full S.M.A.R.T data from smartctl<br>requires at least smartmontools 7.0<br>(see Known Issues)</td>
+                  </tr>
                   <tr class="example">
                     <td></td>
                     <td colspan="7">
@@ -259,7 +269,15 @@ si.diskLayout().then(data => console.log(data));</code></pre class="example">
     firmwareRevision: '',
     serialNum: '...serial....',
     interfaceType: 'PCIe',
-    smartStatus: 'unknown'
+    smartStatus: 'unknown',
+    smartData: {
+      json_format_version: [Array],
+      smartctl: [Object],
+      device: [Object],
+      model_name: 'SAMSUNG xxxxxxxxxxxx-xxxx',
+      serial_number: '...serial....',
+      ...
+    }
   },
   {
     ...