🪄 Major refactoring to use ESP32 template

This includes the change to use https://github.com/runeharlyk/ESP32-rapid-development-template.git as a freeRTos template

include/types.h

@@ -0,0 +1,56 @@
+#pragma once
+
+#include <cstddef>
+#include <cstdint>
+#include <WString.h>
+
+struct EmbeddedFile
+{
+    // Embedded file size in bytes
+    const size_t length;
+    // Contents as bytes
+    const uint8_t *const contents;
+
+    EmbeddedFile(const uint8_t start[], const uint8_t end[]) :
+        length(end - start),
+        contents(start)
+    {}
+};
+
+struct SettingSpec
+{
+    // Note that if this enum is expanded, ToName() must be also!
+    enum class SettingType : int
+    {
+        Integer,
+        PositiveBigInteger,
+        Float,
+        Boolean,
+        String,
+        Palette
+    };
+
+    String Name;
+    String FriendlyName;
+    String Description;
+    SettingType Type;
+
+    SettingSpec(const String& name, const String& friendlyName, const String& description, SettingType type)
+      : Name(name),
+        FriendlyName(friendlyName),
+        Description(description),
+        Type(type)
+    {}
+
+    SettingSpec(const String& name, const String& friendlyName, SettingType type) : SettingSpec(name, friendlyName, "", type)
+    {}
+
+    SettingSpec()
+    {}
+
+    String static ToName(SettingType type)
+    {
+        String names[] = { "Integer", "PositiveBigInteger", "Float", "Boolean", "String", "Palette" };
+        return names[(int)type];
+    }
+};