Add proper util::hash_table move constructor & assignment

libs/util/include/psemek/util/hash_table.hpp

@@ -115,6 +115,27 @@ namespace psemek::util
 				, Equal(std::forward<K>(k))
 			{}
 
+			hash_table_impl(hash_table_impl && other)
+				: Hash(std::move(other.hash()))
+				, Equal(std::move(other.equal()))
+				, storage_(std::move(other.storage_))
+			{
+				other.storage_.capacity = 0;
+				other.size_ = 0;
+			}
+
+			hash_table_impl & operator = (hash_table_impl && other)
+			{
+				if (this == &other)
+					return *this;
+
+				storage_ = std::move(other.storage_);
+				size_ = other.size_;
+				other.storage_.capacity = 0;
+				other.size_ = 0;
+				return *this;
+			}
+
 			Hash const & hash() const { return *this; }
 			Equal const & equal() const { return *this; }