src: Moved path prefilling to ApplicationSettingsPrefiller

* added subdirectory for all source group settings related files

src/lib/settings/source_group/SourceGroupSettingsWithSourceExtensions.cpp

@@ -0,0 +1,38 @@
+#include "SourceGroupSettingsWithSourceExtensions.h"
+
+#include "ProjectSettings.h"
+#include "utility.h"
+
+SourceGroupSettingsWithSourceExtensions::SourceGroupSettingsWithSourceExtensions()
+	: m_sourceExtensions(std::vector<std::wstring>())
+{
+}
+
+bool SourceGroupSettingsWithSourceExtensions::equals(std::shared_ptr<SourceGroupSettingsWithSourceExtensions> other) const
+{
+	return utility::isPermutation(m_sourceExtensions, other->m_sourceExtensions);
+}
+
+void SourceGroupSettingsWithSourceExtensions::load(std::shared_ptr<const ConfigManager> config, const std::string& key)
+{
+	setSourceExtensions(config->getValuesOrDefaults(key + "/source_extensions/source_extension", std::vector<std::wstring>()));
+}
+
+void SourceGroupSettingsWithSourceExtensions::save(std::shared_ptr<ConfigManager> config, const std::string& key)
+{
+	config->setValues(key + "/source_extensions/source_extension", getSourceExtensions());
+}
+
+std::vector<std::wstring> SourceGroupSettingsWithSourceExtensions::getSourceExtensions() const
+{
+	if (m_sourceExtensions.empty())
+	{
+		return getDefaultSourceExtensions();
+	}
+	return m_sourceExtensions;
+}
+
+void SourceGroupSettingsWithSourceExtensions::setSourceExtensions(const std::vector<std::wstring>& sourceExtensions)
+{
+	m_sourceExtensions = sourceExtensions;
+}