Began implementation of WCH-Link protocol, for the WCH-LinkE debug tool.

Foundations have been laid.

src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Command.hpp

@@ -0,0 +1,55 @@
+#pragma once
+
+#include <cstdint>
+#include <cassert>
+#include <vector>
+#include <array>
+
+#include "src/DebugToolDrivers/WCH/Protocols/WchLink/Responses/Response.hpp"
+
+
+namespace DebugToolDrivers::Wch::Protocols::WchLink::Commands
+{
+    template <class PayloadContainerType = std::vector<unsigned char>>
+    class Command
+    {
+        static_assert(
+            std::is_same_v<typename PayloadContainerType::value_type, unsigned char>,
+            "Invalid payload container type"
+        );
+
+    public:
+        using ExpectedResponseType = Responses::Response;
+
+        std::uint8_t commandId;
+        PayloadContainerType payload;
+
+        explicit Command(std::uint8_t commandId)
+            : commandId(commandId)
+        {};
+
+        virtual ~Command() = default;
+
+        Command(const Command& other) = default;
+        Command(Command&& other) noexcept = default;
+
+        Command& operator = (const Command& other) = default;
+        Command& operator = (Command&& other) noexcept = default;
+
+        [[nodiscard]] auto getRawCommand() const {
+            assert(this->payload.size() <= 256);
+
+            auto rawCommand = std::vector<unsigned char>(3 + this->payload.size());
+
+            rawCommand[0] = 0x81;
+            rawCommand[1] = this->commandId;
+            rawCommand[2] = static_cast<std::uint8_t >(this->payload.size());
+
+            if (!this->payload.empty()) {
+                std::copy(this->payload.begin(), this->payload.end(), rawCommand.begin() + 3);
+            }
+
+            return rawCommand;
+        }
+    };
+}

src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Control/GetDeviceInfo.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <cstdint>
+
+#include "src/DebugToolDrivers/WCH/Protocols/WchLink/Commands/Command.hpp"
+
+namespace DebugToolDrivers::Wch::Protocols::WchLink::Commands::Control
+{
+    class GetDeviceInfo: public Command<std::array<unsigned char, 1>>
+    {
+    public:
+        GetDeviceInfo()
+            : Command(0x0d)
+        {
+            this->payload = {
+                0x01
+            };
+        }
+    };
+}