If it turns out people use this, we can support a custom schema request
service implementation instead.
Also error responses for schema requests are now handled.
- Both `js-yaml` and `yaml-languageserver-parser` have been replaced with
`yaml`.
- `jsonc-parser` has been externalized.
- All defaults are now specified explicitly.
- The new property `yamlVersion` has been added to match
`yaml-language-server`. The default is `1.2`.
- `DiagnosticsOptions` properties are now sorted alphabetically and
documentation has been enhanced.
Closes#117
TypeScript is better at inferring types when using simple functions and
objects instead of classes. As a result many type annotations have now
been removed without impacting type safety.
Some other benefits are this can be minified better and private fields
are now truly private variables.
This removes the need to explain certain statements and imports need to
happen in a specific order. Users can now just use:
```ts
import { setDiagnosticsOptions } from 'monaco-yaml';
setDiagnosticsOptions({});
```
