Merge Develop into Main (#300)

- Made an external app from internal Calculator app
- Update tactility.py to v1.2.0 (fix bug with selfupdate)
- Added warning to Development service UI
- Add context to `SECURITY.md`
- Split `ObjectFileReader` and `ObjectFileWriter` into separate cpp files
- Fix related to GPS config read errors

ExternalApps/Calculator/main/Source/Dequeue.h

@@ -0,0 +1,95 @@
+#pragma once
+
+template <typename DataType>
+class Dequeue {
+
+    struct Node {
+        DataType data;
+        Node* next;
+        Node* previous;
+
+        Node(DataType data, Node* next, Node* previous):
+            data(data),
+            next(next),
+            previous(previous)
+        {}
+    };
+
+    int count = 0;
+    Node* head = nullptr;
+    Node* tail = nullptr;
+
+public:
+
+    void pushFront(DataType data) {
+        auto* new_node = new Node(data, head, nullptr);
+
+        if (head != nullptr) {
+            head->previous = new_node;
+        }
+
+        if (tail == nullptr) {
+            tail = new_node;
+        }
+
+        head = new_node;
+        count++;
+    }
+
+    void pushBack(DataType data) {
+        auto* new_node = new Node(data, nullptr, tail);
+
+        if (head == nullptr) {
+            head = new_node;
+        }
+
+        if (tail != nullptr) {
+            tail->next = new_node;
+        }
+
+        tail = new_node;
+        count++;
+    }
+
+    void popFront() {
+        if (head != nullptr) {
+            bool is_last_node = (head == tail);
+            Node* node_to_delete = head;
+            head = node_to_delete->next;
+            if (is_last_node) {
+                tail = nullptr;
+            }
+            delete node_to_delete;
+            count--;
+        }
+    }
+
+    void popBack() {
+        if (tail != nullptr) {
+            bool is_last_node = (head == tail);
+            Node* node_to_delete = tail;
+            tail = node_to_delete->previous;
+            if (is_last_node) {
+                head = nullptr;
+            }
+            delete node_to_delete;
+            count--;
+        }
+    }
+
+    DataType back() const {
+        assert(tail != nullptr);
+        return tail->data;
+    }
+
+    DataType front() const {
+        assert(head != nullptr);
+        return head->data;
+    }
+
+    bool empty() const {
+        return head == nullptr;
+    }
+
+    int size() const { return count; }
+};