Adding ability to project device, link and host model as alternate entities.

Change-Id: If23c018b024a3bbe693f0e66888c5f1707e3f66d
diff --git a/core/api/src/main/java/org/onosproject/net/driver/Projectable.java b/core/api/src/main/java/org/onosproject/net/driver/Projectable.java
index 02dce7e..9cff6b4 100644
--- a/core/api/src/main/java/org/onosproject/net/driver/Projectable.java
+++ b/core/api/src/main/java/org/onosproject/net/driver/Projectable.java
@@ -38,7 +38,7 @@
      * Returns true if this entity is capable of being projected as the
      * specified class.
      *
-     * @param projectionClass projection class
+     * @param projectionClass requested projection class
      * @param <B> type of behaviour
      * @return true if the requested projection is supported
      */