configuration: Move CreateWidget to a class

We were passing so many objects between the function and the caller that
it needed to be redesigned.

src/yuzu/configuration/shared_widget.h

@@ -0,0 +1,64 @@
+#include "yuzu/configuration/configuration_shared.h"
+#include "yuzu/configuration/shared_translation.h"
+
+class QPushButton;
+class QComboBox;
+class QLineEdit;
+class QSlider;
+class QCheckBox;
+
+namespace Settings {
+class BasicSetting;
+}
+
+namespace ConfigurationShared {
+
+enum class RequestType {
+    Default,
+    ComboBox,
+    SpinBox,
+    Slider,
+    ReverseSlider,
+    LineEdit,
+    MaxEnum,
+};
+
+class Widget : public QWidget {
+    Q_OBJECT
+
+public:
+    Widget(Settings::BasicSetting* setting, const TranslationMap& translations, QWidget* parent,
+           bool runtime_lock, std::forward_list<std::function<void(bool)>>& apply_funcs,
+           RequestType request = RequestType::Default, bool managed = true, float multiplier = 1.0f,
+           const std::string& text_box_default = "");
+    virtual ~Widget();
+
+    bool Valid();
+
+    QPushButton* restore_button{};
+    QLineEdit* line_edit{};
+    QCheckBox* checkbox{};
+    QSlider* slider{};
+    QComboBox* combobox{};
+
+private:
+    void CreateCheckBox(const QString& label, std::function<void()>& load_func);
+    void CreateCheckBoxWithLineEdit(const QString& label, const std::string& text_box_default,
+                                    std::function<void()>& load_func);
+    void CreateCheckBoxWithSpinBox(const QString& label, const std::string& text_box_default,
+                                   std::function<void()>& load_func);
+    void CreateCombobox(const QString& label, bool managed, std::function<void()>& load_func);
+    void CreateLineEdit(const QString& label, bool managed, std::function<void()>& load_func);
+    void CreateSlider(const QString& label, bool reversed, float multiplier,
+                      std::function<void()>& load_func);
+
+    void CreateRestoreGlobalButton();
+
+    QWidget* parent;
+    const TranslationMap& translations;
+    Settings::BasicSetting& setting;
+
+    bool created{false};
+};
+
+} // namespace ConfigurationShared