Store body materials and atmosphere as raw json objects

[derrickmehaffy]

• [x] Remove bodyatmosphere model and update body model field to json
• [x] Remove bodymaterial model and update body model field to json
• [x] Update Documentation to reflect changes

Due to difficulty in matching these models to the body model as a relationship and the fixes done to Strapi to support raw json storage (and how EDSM stores it) we should change the body model to store this as raw json.

Testing will need to be done to ensure this follows the proper format on both the restAPI and GraphQL

[derrickmehaffy]

Depends on: https://github.com/canonn-science/CAPIv2-Strapi/issues/72

[derrickmehaffy]

PR has been submitted and waiting build results to merge, marking as resolved