Many missing exported types since #300

[mgabeler-lee-6rs]

The rewrite in #300 caused many previously-exported types to no longer be exported. These types are important when trying to work with customizations to the library.

The two types that are most relevant to my work are JSONSchema and FileInfo. JSONSchema is important for naming inputs and outputs to several $RefParser methods, and FileInfo is needed to safely write custom parser plugins as exposed by $RefParser

[bcherny]

+1

There also seems to be a bunch of type errors. To repro, create a new directory, npm init, then npm install json-schema-ref-parser.

[jonluca]

Sorry about that, we export more types now in v11.2.2 and v11.2.4