Standard MIME type for bigData system wide integration

Standardizing data types across the Caesar ecosystem.

Use-case Example

For example, if a user uploads pointclouds and keyframe images, how do we tell older Arena code to draw that data properly (see Arena.jl#29)?

• Idea is to MIME types in the design (see Caesar.jl#274).
• User can upload anything,
  • Then go back and reinsert new bigData with proper MIME type declarations,
• Like magic -- Arena (or whatever else) -- just works with that data from there on out.

Standard Data

Standard data includes things like:

• Camera image
• Image size
• Camera intrinsics and extrinsics
• point clouds
• depth to image transform
• etc.