FR: load raw data

[r2evans]

I'd like to look at the raw data, is it possible to add an option to TCXRead() to summarize or return all data?

[firefly-cpp]

Thanks! So you are basically interested to get a return of the whole tcx file?

[r2evans]

Yes, perhaps just "tcx to dataframe". Thanks!

[firefly-cpp]

@r2evans, please review the new enhancement. Test it and share your feedback. If you spot any issues, please submit a PR. We can also release a new version to CRAN once we confirm everything is working well.