exposure documentation for infrastructure

[stufraser1]

exposure documentation (examples, taxonomy) relates only to buildings - we should include examples and codes possible to use for infrastructure too at the highest level (this is only visible when user clicks on ged4all taxonomy) to clearly demonstrate support for these exposure types

[pzwsk]

Agree, and the page https://docs.riskdatalibrary.org/exposure.html should be added to the Exposure section.

[stufraser1]

The attributes given in the table and examples are only part of what can be completed. I think the value fields should also be included in the table explicitly, rather than mentioned in the text only.