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/Stack.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "Dequeue.h"
+
+template <typename DataType>
+class Stack {
+
+    Dequeue<DataType> dequeue;
+
+public:
+
+    void push(DataType data) { dequeue.pushFront(data); }
+
+    void pop() { dequeue.popFront(); }
+
+    DataType top() const { return dequeue.front(); }
+
+    bool empty() const { return dequeue.empty(); }
+
+    int size() const { return dequeue.size(); }
+};