Bug 579494 - Adds spy.core dependency to spy.css

As spy.css provides an extension for spy.core this dependency is needed.

Change-Id: I4b5e1c4e19d1bd69303ad8dfc277eebce3a5b357
Reviewed-on: https://git.eclipse.org/r/c/pde/eclipse.pde.ui/+/192351
Tested-by: PDE Bot <pde-bot@eclipse.org>
Reviewed-by: Lars Vogel <Lars.Vogel@vogella.com>
diff --git a/ui/org.eclipse.pde.spy.css/META-INF/MANIFEST.MF b/ui/org.eclipse.pde.spy.css/META-INF/MANIFEST.MF
index 9cb4baa..45205f8 100644
--- a/ui/org.eclipse.pde.spy.css/META-INF/MANIFEST.MF
+++ b/ui/org.eclipse.pde.spy.css/META-INF/MANIFEST.MF
@@ -10,7 +10,8 @@
  org.eclipse.jface;bundle-version="3.8.0",
  org.eclipse.e4.ui.css.swt;bundle-version="0.10.0",
  org.eclipse.e4.ui.css.swt.theme;bundle-version="0.9.201",
- org.eclipse.e4.ui.model.workbench;bundle-version="0.9.1"
+ org.eclipse.e4.ui.model.workbench;bundle-version="0.9.1",
+ org.eclipse.pde.spy.core;bundle-version="1.0.200"
 Bundle-ActivationPolicy: lazy
 Import-Package: javax.annotation;version="1.2.0",
  javax.inject;version="1.0.0",