Table column width information is not available through version 2 of the REST API

Issue Summary

Tables widths can be resized, but this information is not available through version 2 of the REST API.

Steps to Reproduce

1. Create an issue where the description contains a table and the columns are of different widths.
2. Call https://mytenant.atlassian.net/rest/api/3/issue/\{issueKey}?expand=renderedFields.
3. Call https://mytenant.atlassian.net/rest/api/2/issue/\{issueKey}?expand=renderedFields.

Expected Results

The table markup returned at step 3 provides the widths of the table.

Actual Results

The table markup returned at step 3 does not provide the widths of the table.

Workaround

It is not feasible to use the table column width information returned in the Atlassian Document Format (ADF) returned at step 2 because Atlassian does not yet provide a library or spec making it feasible for apps to parse ADF. In addition, version 3 of the API is still in beta.