Add IW3 zone writing

src/ZoneWriting/Writing/Processor/OutputProcessorDeflate.h

@@ -0,0 +1,26 @@
+#pragma once
+#include <cstdint>
+#include <cstddef>
+
+#include "Writing/OutputStreamProcessor.h"
+
+class OutputProcessorDeflate final : public OutputStreamProcessor
+{
+    class Impl;
+    Impl* m_impl;
+
+    static constexpr size_t DEFAULT_BUFFER_SIZE = 0x40000;
+
+public:
+    OutputProcessorDeflate();
+    OutputProcessorDeflate(size_t bufferSize);
+    ~OutputProcessorDeflate() override;
+    OutputProcessorDeflate(const OutputProcessorDeflate& other) = delete;
+    OutputProcessorDeflate(OutputProcessorDeflate&& other) noexcept = default;
+    OutputProcessorDeflate& operator=(const OutputProcessorDeflate& other) = delete;
+    OutputProcessorDeflate& operator=(OutputProcessorDeflate&& other) noexcept = default;
+
+    void Write(const void* buffer, size_t length) override;
+    void Flush() override;
+    int64_t Pos() override;
+};