Extract search path related code from Linker into separate class

src/Linker/LinkerSearchPaths.h

@@ -0,0 +1,46 @@
+#pragma once
+#include "SearchPath/SearchPaths.h"
+
+#include <memory>
+#include <vector>
+
+#include "LinkerArgs.h"
+
+class LinkerSearchPaths
+{
+public:
+    explicit LinkerSearchPaths(const LinkerArgs& args);
+
+    /**
+     * \brief Loads a search path.
+     * \param searchPath The search path to load.
+     */
+    void LoadSearchPath(ISearchPath* searchPath) const;
+
+    /**
+     * \brief Unloads a search path.
+     * \param searchPath The search path to unload.
+     */
+    void UnloadSearchPath(ISearchPath* searchPath) const;
+
+    SearchPaths GetAssetSearchPathsForProject(const std::string& gameName, const std::string& projectName);
+
+    SearchPaths GetGdtSearchPathsForProject(const std::string& gameName, const std::string& projectName);
+
+    SearchPaths GetSourceSearchPathsForProject(const std::string& projectName);
+
+    /**
+     * \brief Initializes the Linker object's search paths based on the user's input.
+     * \return \c true if building the search paths was successful, otherwise \c false.
+     */
+    bool BuildProjectIndependentSearchPaths();
+
+    void UnloadProjectSpecificSearchPaths();
+
+private:
+    const LinkerArgs& m_args;
+    std::vector<std::unique_ptr<ISearchPath>> m_loaded_project_search_paths;
+    SearchPaths m_asset_search_paths;
+    SearchPaths m_gdt_search_paths;
+    SearchPaths m_source_search_paths;
+};