Call Blocking UI/String change

+ Adjusted UI/String according to new specifications.
+ Added class VisualVoicemailEnabledChecker
+ Block number dialog display different message depending
  on whether VVM is activated.

Bug:25455707
Change-Id: I09425053c91a5517e309302d421beadcc2d81cd4
diff --git a/src/com/android/dialer/CallDetailActivity.java b/src/com/android/dialer/CallDetailActivity.java
index 0d943e0..f63fcf3 100644
--- a/src/com/android/dialer/CallDetailActivity.java
+++ b/src/com/android/dialer/CallDetailActivity.java
@@ -358,6 +358,7 @@
         switch(view.getId()) {
             case R.id.call_detail_action_block:
                 BlockNumberDialogFragment.show(
+                        this,
                         mBlockedNumberId,
                         mNumber,
                         mDetails.countryIso,