Reduce namespace length further

src/Collections/Dictionary.hpp

@@ -4,7 +4,7 @@
 #include <unordered_map>
 #include "../Assert.hpp"
 
-namespace ArbUt::Collections {
+namespace ArbUt {
     template <class KeyT, class ValueT> class Dictionary {
     private:
         std::unordered_map<KeyT, ValueT> _map;

src/Collections/List.hpp

@@ -5,7 +5,7 @@
 #include <stdexcept>
 #include <vector>
 
-namespace ArbUt::Collections {
+namespace ArbUt {
     template <class ValueT> class List {
     private:
         std::vector<ValueT> _vector;

src/Memory/borrowed_ptr.cpp

@@ -1 +0,0 @@
-#include "borrowed_ptr.hpp"

src/Memory/borrowed_ptr.hpp

@@ -3,7 +3,7 @@
 
 #include <memory>
 
-namespace ArbUt::Memory {
+namespace ArbUt {
     /// A borrowed pointer is used to indicate a pointer that is not owned by an object, but instead borrowed from
     /// another owning object that is assumed to always be kept alive during the entire lifetime of the borrowing
     /// object.