[UI Feature] Generic JSON schema validation in Flyteconsole launch forms

[kumare3]

Motivation: Why do you think this is important?
Related to - #654
Now that Generic Structs can have Schema associated with them optionally, it would be useful for the users of FlyteConsole - LaunchForm to launch an execution where for structure types, the UX is auto-generated

An ideal example for the UX could be to follow the VS code style - type-ahead JSON editor as shown here
OR
an auto-generating form like here

This makes the users like extremely easy to structured data. This is extremely useful for Hyper parameter tuning, node-code tasks, configuration etc

Example for workflow in flytesnacks https://github.com/flyteorg/flytesnacks/blob/master/cookbook/core/type_system/custom_objects.py

Goal: What should the final outcome look like, ideally?
Users should be able to enter valid json instead of arbitrary json

[Optional] Propose: Link/Inline OR Additional context AND/OR Mock ideas
[WIP]

[kumare3]

I think another approach would be to use YAML as the representation instead of json and use a library like https://github.com/redhat-developer/yaml-language-server

[kumare3]

cc @jsonporter would love your inputs on this

[kumare3]

@jsonporter the doc for the json-schema update can be found here.

In short the schema for a json value is optional. But, when it is available it will be in a standardized jsonschema format (a closure with all entities described in the same schema). The schema is available in the LiteralType.metadata field.