Add remote logging server

Remote logging enables the user to configure a remote
server to stream out local logs. This feature will be
available on the Event Log page. The user can add a
remote server, edit/change an existing server
configuration and remove/disable the remote server.

Resolves openbmc/phosphor-webui#68

Signed-off-by: Yoshie Muranaka <yoshiemuranaka@gmail.com>
Change-Id: I8284cbdbdaaf85f5c95f237efc72290c66904b40
diff --git a/app/common/styles/base/forms.scss b/app/common/styles/base/forms.scss
index 21253e7..5e75bcc 100644
--- a/app/common/styles/base/forms.scss
+++ b/app/common/styles/base/forms.scss
@@ -10,6 +10,13 @@
   }
 }
 
+.label__helper-text {
+  color: $darkgrey;
+  line-height: 1.2;
+  font-size: 0.9em;
+  margin-bottom: 0.4em;
+}
+
 input[type='email'],
 input[type='number'],
 input[type='password'],
@@ -113,3 +120,7 @@
     max-height: none;
   }
 }
+.form__validation-message {
+  color: $error-color;
+  font-size: 0.9em;
+}