src: Renaming class to spell out them (Adl, Nhl, Npl, Npt, Npte)

Refs: #1534

Change-Id: If4a205e8ad2419505cc796027a5c863471ef5439
diff --git a/src/lsdb.hpp b/src/lsdb.hpp
index 9814034..9e8c207 100644
--- a/src/lsdb.hpp
+++ b/src/lsdb.hpp
@@ -2,6 +2,8 @@
 #define NLSR_LSDB_HPP
 
 #include <utility>
+#include <boost/cstdint.hpp>
+
 #include "lsa.hpp"
 
 namespace nlsr {