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/Responses/ResponseTypes.hpp

@@ -8,6 +8,7 @@ namespace Bloom::TargetController::Responses
     {
         GENERIC,
         ERROR,
+        STATE,
         TARGET_DESCRIPTOR,
         TARGET_REGISTERS_READ,
         TARGET_MEMORY_READ,

src/TargetController/Responses/State.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "Response.hpp"
+
+#include "src/TargetController/TargetControllerState.hpp"
+
+namespace Bloom::TargetController::Responses
+{
+    class State: public Response
+    {
+    public:
+        static constexpr ResponseType type = ResponseType::STATE;
+
+        TargetControllerState state;
+
+        explicit State(TargetControllerState state)
+            : state(state)
+        {}
+
+        [[nodiscard]] ResponseType getType() const override {
+            return State::type;
+        }
+    };
+}