* Refactor towards template/codegen framework
* Add templates for plugin gen
* Add Go codegen for plugins; overhaul framework, too
* Add new codegen output; assorted framework fixes
* Regenerate after merge
* Remove accidental commit file, update templates
* Export the pfs.Tree loader from plugin types
* Print details from cuetsy errors
* Generate loaders for all plugins and list in registry
* Use pfs_gen.go over lineage_gen.go
* Un-un-ignore main file
* Introduce simple List static registry for plugins
* Last tweaks to codegen
* remove unused tvars
* Ensure loop-local instances for both vars
* Generate pfs parsing in-place in registry
* Stop generating pfs_gen.go
* Move Tree into pfs, rename subdir
* Change package name to match dir
* Ignore gocyclo on HTTPServer.getNavTree
* coremodels: Convert plugin-metadata schema to a coremodel
* Newer cuetsy; try quoting field name
* Add APIType control concept, regen pluginmeta
* Use proper numeric types for schema fields
* coremodel: Generate static registry
* Actually make codegen work
Also, remove the per-coremodel assignability test from generator set.
* Make wire gen depend on cue gen
This is necessary now that we're generating a wire set as part of
coremodel registry generation.
* Add wire inject bits to http server
* s/staticregistry/registry/
* move to static and dynamic wording
* Move registry type into registry package
* Use static registry in http handler
* Oi comments
