added pre-loader template to directives. Added styling for loader animation.

Change-Id: I2f60a4bf8cbf49932b9e736818fcb3a4560af838
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/styles/elements/index.scss b/app/common/styles/elements/index.scss
index 7b1d1c5..c9e29d9 100644
--- a/app/common/styles/elements/index.scss
+++ b/app/common/styles/elements/index.scss
@@ -6,6 +6,7 @@
 @import "alerts";
 @import "inline-confirm";
 @import "accordion";
+@import "loader";
 @import "content-search";
 @import "paginate";
 @import "thresholds";