refactor: map::array_t now extends std::vector, instead of shelling it

include/utils/data.hh

@@ -108,25 +108,5 @@ namespace ppc::data {
         }
     };
 
-    class array_t {
+    class array_t : public std::vector<value_t> { };
-    private:
-        std::vector<value_t> values;
-    public:
-        value_t &operator [](std::size_t i) { return values[i]; }
-        const value_t &operator [](std::size_t i) const { return values[i]; }
-
-        auto begin() const { return values.begin(); }
-        auto end() const { return values.end(); }
-
-        void push(const value_t &val) { values.push_back(val); }
-        void insert(const value_t &val, std::size_t i = 0) { values.insert(begin() + i, val); }
-        void pop() { values.pop_back(); }
-        void remove(std::size_t i = 0) { values.erase(begin() + i); }
-
-        std::size_t size() const { return values.size(); }
-
-        array_t() { }
-        array_t(const std::vector<value_t> &val): values(val) { }
-        array_t(std::initializer_list<value_t> val): values(val) { }
-    };
 }