Replaced static TargetController state object access with new GetState command

This corrects a bug where the DebugServer checks if the TargetController is in
service just before it's about to suspend. The DebugServer then attempts to start
a new debug session, only for the TargetController to go into a suspended state.
A fatal error occurs and a shutdown follows. This bug is only apparent when
the user stops and starts debug sessions very quickly, with releasePostDebugSession
set to true.

src/TargetController/Commands/CommandTypes.hpp

@@ -7,6 +7,7 @@ namespace Bloom::TargetController::Commands
     enum class CommandType: std::uint8_t
     {
         GENERIC,
+        GET_STATE,
         GET_TARGET_DESCRIPTOR,
         STOP_TARGET_EXECUTION,
         RESUME_TARGET_EXECUTION,

src/TargetController/Commands/GetState.hpp

@@ -0,0 +1,29 @@
+#pragma once
+
+#include "Command.hpp"
+
+#include "src/TargetController/Responses/State.hpp"
+
+namespace Bloom::TargetController::Commands
+{
+    class GetState: public Command
+    {
+    public:
+        using SuccessResponseType = Responses::State;
+
+        static constexpr CommandType type = CommandType::GET_STATE;
+        static inline const std::string name = "GetState";
+
+        [[nodiscard]] CommandType getType() const override {
+            return GetState::type;
+        }
+
+        [[nodiscard]] bool requiresActiveState() const override {
+            return false;
+        }
+
+        [[nodiscard]] bool requiresDebugMode() const override {
+            return false;
+        }
+    };
+}