Update Sensors page to use table mixins

- Add number formatting to TableDataFormatter mixin
- Use TableDataFormatter mixin to show different status icons for sensor
  status (OK, Warning, Critical)
- Use TableSortMixin to sort by status (OK, Warning, Critical)

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: I99899bbc19db3529f0fdfe34be30b09d41456b42
diff --git a/src/components/Mixins/TableDataFormatterMixin.js b/src/components/Mixins/TableDataFormatterMixin.js
index 77db7de..3e15926 100644
--- a/src/components/Mixins/TableDataFormatterMixin.js
+++ b/src/components/Mixins/TableDataFormatterMixin.js
@@ -3,6 +3,8 @@
     tableFormatter(value) {
       if (value === undefined || value === null || value === '') {
         return '--';
+      } else if (typeof value === 'number') {
+        return parseFloat(value.toFixed(3));
       } else {
         return value;
       }