change GetArchives to return shared pointer to copy of vector

[briaguya-ai]

libultraship/src/resource/archive/ArchiveManager.h

Line 24 in 00c6bcc

std::vector<std::shared_ptr<Archive>> GetArchives();

follow pattern from

libultraship/src/resource/archive/ArchiveManager.cpp

Lines 79 to 85 in 00c6bcc

	std::shared_ptr<std::vector<std::string>> ArchiveManager::ListFiles() {
	auto list = std::make_shared<std::vector<std::string>>();
	for (const auto& [hash, path] : mHashes) {
	list->push_back(path);
	}
	return list;
	}