Switch to new KeyChain where possible

signed_interest::POS_RANDOM_VAL and signed_interest::POS_TIMESTAMP
constants are deprecated. Use command_interest:: equivalents instead.

This commit also includes fix for the backward compatibility regression
due to move of deprecated TPM/PublicInfo header files.

Change-Id: Ic3b008fc6758f3ac83f191158b6ac0789483f90d
Refs: #3098
diff --git a/tests/unit-tests/face.t.cpp b/tests/unit-tests/face.t.cpp
index 2813bd1..ebbede6 100644
--- a/tests/unit-tests/face.t.cpp
+++ b/tests/unit-tests/face.t.cpp
@@ -36,7 +36,7 @@
 
 using ndn::util::DummyClientFace;
 
-class FaceFixture : public IdentityManagementTimeFixture
+class FaceFixture : public IdentityManagementV1TimeFixture
 {
 public:
   explicit