[TSDB] [Documentation] Annotate fields that are dimensions in the table showing Exported Fields in Integration

For a user, a knowledge on the fields that are dimensions is important such as to write queries involving aggregation


Reference : https://github.com/elastic/integrations/tree/main/packages/oracle/docs

Adding one more column would further limit the space available for showing Descriptions. Column - "Type" have values such as "keyword, dimension" would help.

Request is to enhance elastic-package tool to capture the dimension fields and create/update auto-generated documentation