Search the paths defined in a game's configuration for JSON files and
merge them into the game's configuration. This allows a build to load
config specific to that build by packaging the override JSON in the
distribution.
Remove rules for loading Android and WASM config files in favor of using
the search path.
Add all searched JSON to the auto config refresh list when auto refresh
is enabled.
Modify sb::glob so that it requires a directory argument and a pattern
to search for within the directory.
Add a test for config search path lookup.