Massive refactor to accommodate RISC-V targets

- Refactored entire codebase (excluding the Insight component) to accommodate multiple target architectures (no longer specific to AVR)
- Deleted 'generate SVD' GDB monitor command - I will eventually move this functionality to the Bloom website
- Added unit size property to address spaces
- Many other changes which I couldn't be bothered to describe here

src/Targets/TargetGpioPinState.hpp

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <cstdint>
+#include <QMetaType>
+
+#include "TargetPinDescriptor.hpp"
+
+namespace Targets
+{
+    struct TargetGpioPinState
+    {
+        enum class State: std::uint8_t
+        {
+            HIGH,
+            LOW,
+        };
+
+        enum class DataDirection: std::uint8_t
+        {
+            INPUT,
+            OUTPUT,
+        };
+
+        State value;
+        DataDirection direction;
+
+        TargetGpioPinState(
+            State value,
+            DataDirection direction
+        )
+            : value(value)
+            , direction(direction)
+        {}
+    };
+
+    using TargetGpioPinDescriptorAndStatePair = Pair<const TargetPinDescriptor&, TargetGpioPinState>;
+    using TargetGpioPinDescriptorAndStatePairs = std::vector<TargetGpioPinDescriptorAndStatePair>;
+}
+
+Q_DECLARE_METATYPE(Targets::TargetGpioPinState)