added toString hashCode and equals to context objects

blobstore/src/main/java/org/jclouds/blobstore/internal/BlobStoreContextImpl.java

@@ -118,4 +118,19 @@ public class BlobStoreContextImpl<S, A> implements BlobStoreContext {
    public Utils utils() {
       return utils;
    }
+
+   @Override
+   public int hashCode() {
+      return providerSpecificContext.hashCode();
+   }
+
+   @Override
+   public String toString() {
+      return providerSpecificContext.toString();
+   }
+
+   @Override
+   public boolean equals(Object obj) {
+      return providerSpecificContext.equals(obj);
+   }
 }

compute/src/main/java/org/jclouds/compute/internal/ComputeServiceContextImpl.java

@@ -80,4 +80,18 @@ public class ComputeServiceContextImpl<S, A> implements ComputeServiceContext {
    public Utils utils() {
       return utils;
    }
+
+   public int hashCode() {
+      return providerSpecificContext.hashCode();
+   }
+
+   @Override
+   public String toString() {
+      return providerSpecificContext.toString();
+   }
+
+   @Override
+   public boolean equals(Object obj) {
+      return providerSpecificContext.equals(obj);
+   }
 }