HDDS-7417. [Design] Ozone Transparent Data Compression Support

[Cyrill]

What changes were proposed in this pull request?

This is a design doc to add compression support to Ozone

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-7417

How was this patch tested?

cd hadoop-hdds/docs
hugo serve
firefox http://localhost:1313