Add ESC TypeScript & Python SDK API reference docs

[justinvp]

This PR adds API reference docs for the ESC TypeScript and Python SDKs.

Notes:

• The Python docs are based on the latest published version on PyPi. (We'll want to regen when the latest version is available).
• The Python docs are currently showing everything that's exported from the module -- we may want to filter it down to only certain set of APIs
• The TypeScript docs are based on what's currently in https://github.com/pulumi/esc-sdk/tree/main/sdk/typescript/esc
• We'll definitely want to link to these from the ESC docs.
• We may want to also include links to these at the bottom of https://www.pulumi.com/docs/languages-sdks/javascript/ and https://www.pulumi.com/docs/languages-sdks/python/
• We'll likely want to add some kind of workflow, that will generate these automatically when there is a new release for https://github.com/pulumi/esc-sdk, like what we do for new releases of pulumi/pulumi.

[pulumi-bot]

Your site preview for commit a89452f is ready! 🎉

http://www-testing-pulumi-docs-origin-pr-11957-a89452f2.s3-website.us-west-2.amazonaws.com.

Direct Links

• TypeScript
• Python