Enable output of chronology and metadata to LiPD format

[kanchukaitis]

One of our goals should be to enable a smooth output to the LiPD format with metadata and to create a workflow example that include this: https://github.com/nickmckay/LiPD-utilities/tree/master/Python

[fzhu2e]

Here's a new utility to output LiPD files that might be helpful:
https://pylipd.readthedocs.io/en/latest/api.html#pylipd.lipd.LiPD.create_lipd