Use more C++17 features

Mainly structured bindings, inline variables, and class template
argument deduction, plus many more smaller things.

Change-Id: I810d17e0adb470426e4e30c898e03b3140ad052f
diff --git a/tests/daemon/table/pit.t.cpp b/tests/daemon/table/pit.t.cpp
index 03438d4..defa768 100644
--- a/tests/daemon/table/pit.t.cpp
+++ b/tests/daemon/table/pit.t.cpp
@@ -336,9 +336,9 @@
   for (const auto& pitEntry : pit) {
     actual.insert(&pitEntry.getInterest());
   }
-  std::set<const Interest*> expected = {interestA.get(), interestABC1.get(),
-                                        interestABC2.get(), interestD.get()};
-  BOOST_CHECK_EQUAL_COLLECTIONS(actual.begin(), actual.end(), expected.begin(), expected.end());
+  const auto expected = std::set{interestA.get(), interestABC1.get(),
+                                 interestABC2.get(), interestD.get()};
+  BOOST_TEST(actual == expected, boost::test_tools::per_element());
 }
 
 BOOST_AUTO_TEST_SUITE_END() // TestPit