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/identity-management-fixture.hpp b/tests/identity-management-fixture.hpp
index d2d1473..5c55073 100644
--- a/tests/identity-management-fixture.hpp
+++ b/tests/identity-management-fixture.hpp
@@ -136,7 +136,7 @@
   security::v2::KeyChain m_keyChain;
 };
 
-using IdentityManagementFixture = IdentityManagementV1Fixture;
+using IdentityManagementFixture = IdentityManagementV2Fixture;
 
 } // namespace tests
 } // namespace ndn