Add more image metadata to otio file.

We base a lot of the generated output file info on the results of "get_output_filename", we should embed this result into the OTIO file, so that when we generated the HTML file, that result can be determined from the file, and not guessed at.

So the change would be putting the get_outputfilename into the results metadata.

In the results template and outputTemplate, we should be creating a field which is using that basename replacing {{ test.default_media.basename }}-{{ enc_info.name|e }} with that value.

首先定位 get_output_filename 以及 issue 中提到的结果模板和 outputTemplate，然后跟踪它们的元数据如何写入 OTIO 文件。确认生成的 HTML 可以从 OTIO 元数据中获取输出 basename，而不是进行猜测。

由索引模型根据 Issue 内容生成。