Add full macro-in-macro support so any user defined macro can contain another one as long as it was previously declared in the configuration file.
Fixes#336
Supercedes #335
Changes:
- add Metadata key to ModelConfig
- include metadata in /v1/models under meta.llamaswap key
- add recursive macro substitution into Metadata
- change macros at global and model level to be any scalar type
Note:
This is the first mostly AI generated change to llama-swap. See #333 for notes about the workflow and approach to AI going forward.