Spatial and temporal updates

[odscrachel]

Related issues

Closes #360

Description

• Add temporal and spatial_resolution at dataset level
• Add spatial to Resource
• Update descriptions for spatial, temporal, spatial_resolution and temporal_resolution at both dataset and resource level.

Merge checklist

If you added, removed or renamed a field:

• Update the collapse option of the jsonschema directives for dataset, resource, hazard, exposure, vulnerability and loss on reference/schema.md
• Update the diagrams in reference/schema/md
• Update the JSON files in examples

Always:

• Run ./manage.py pre-commit
• Update the changelog (style guide)

Having trouble?

See how to resolve check failures.

[duncandewhurst]

Adjust descriptions to suit use in the context of a resource.