UI support for customProperties in DatasetProperties aspect

[jsotelo]

Is your feature request related to a problem? Please describe.
The aspect com.linkedin.pegasus2avro.dataset.DatasetProperties has a field customProperties that is valuable in representing data properties that don't quite fit in any other (current) data model which is very valuable. However, the UI doesn't currently display any custom properties.

Describe the solution you'd like
Please add a UI representation (tab?) to convey all custom properties in that aspect. Perhaps similar to the Schema tab?

Describe alternatives you've considered
No other alternatives have been considered

Additional context
For the DataHub users/devs that are not able to afford forking the repo and creating their own data models, having basic support (UI display) for non-off-the-shelf data assets is extremely valuable because it can be used as a stop-gap while developing more explicit data models (or waiting for "official" DataHub models to be released).

As DataHub begins to have a greater presence and influence in users'/devs' tech stack, more prioritization and resources can be allocated into developing code (or making open-source contributions) that enables them to move data out of customProperties and into a more explicit data model.

[jsotelo]

Link to slack discussion: https://datahubspace.slack.com/archives/CV2UXSE9L/p1594430884039000

[cobolbaby]

Is this feature helpful for the display of tags information?

[jsotelo]

I was focused more on customProperties but it totally makes sense to also include tags as part of this, IMO.

[pmsrao]

may be we can look at two steps

• display attributes in UI customerProperties & tags and

• making it available for search
  this issue can focus on the first aspect

[cobolbaby]

I really want to know the progress of this work, and I look forward to setting some tags on the dataset on the page.

Due to some practical factors, some descriptive meta-information cannot be collected at present, and it can only be configured through the post page.