[Eclipse] Add excludes kept in Scala.gitignore .

Scala.gitignore currently has more entries for Eclipse than Eclipse.gitignore
itself. Copy missing entries here.

Global/Eclipse.gitignore

@@ -52,3 +52,5 @@ local.properties
 
 # Scala IDE specific (Scala & Java development for Eclipse)
 .cache-main
+.scala_dependencies
+.worksheet