The schematics `Tree` now contains an additional `readJSON` method that supports directly
reading and parsing the content of a file as UTF-8 JSON with comment support. This avoids the need to manually
decode a Buffer, parse and handle JSON comments within a schematic when JSON content is needed.
If a file path does not exist, an exception will be thrown. While this differs from the semantics of `read`,
it helps reduce the amount of code needed for common schematic use cases. JSON parse errors will also result
in an exception being thrown with a message detailing the error.
The schematics `Tree` now contains an additional `readText` method that supports directly
reading the content of a file as UTF-8 text. This avoids the need to manually decode a Buffer
within a schematic when text content is needed. If a file path does not exist, an exception
will be thrown. While this differs from the semantics of `read`, it helps reduce the amount
of code needed for common schematic use cases.
