Add default or empty table state

-Add appropriate empty text for the table.
-Add common default empty state for all tables.

Signed-off-by: Suren Neware <sneware9@in.ibm.com>
Change-Id: If4beabc0b1450718095757bbb0803335ccf83ec5
diff --git a/src/views/AccessControl/Ldap/TableRoleGroups.vue b/src/views/AccessControl/Ldap/TableRoleGroups.vue
index c09d166..8df8774 100644
--- a/src/views/AccessControl/Ldap/TableRoleGroups.vue
+++ b/src/views/AccessControl/Ldap/TableRoleGroups.vue
@@ -32,11 +32,13 @@
           ref="table"
           responsive
           selectable
+          show-empty
           no-select-on-click
           no-sort-reset
           sort-icon-left
           :items="tableItems"
           :fields="fields"
+          :empty-text="$t('global.table.emptyMessage')"
           @row-selected="onRowSelected($event, tableItems.length)"
         >
           <!-- Checkbox column -->