Update: We should consider adopting undio for standard raw types.

Initial issue: #21. Tracking experimental getItemRaw/setItemRaw support added in #141. Please comment on any particular issues and ideas with the current implementation.

Experimental limitations:

• Default serializer is only supported in environments supporting Buffer. (Node.js and Nitro/Nuxt server in any environment)
• Cannot combine string and raw operations on the same key
  • Default serializer only operates on base64: strings without json support
  • This makes issues with overlay and http backends when translating string operations
• Types are wide to any since we don't enforce any return value from drivers implementation.
• We might support stream responses too