SDK Activity Feed

• Init automatically adds more metadata to the integration.yaml file.
• Configuration files can now have different file types, like integration.yaml, integration.yml, integration.netlify.yaml, integration.netlify.yml

Use fs.rmSync to remove folders - fixes usage on Windows

Bump content-engine dependency

• Host the configuration schema on the site.
• Include link to schema in the generated config file.
• Fix checking the integrationLevel inside getConfiguration().

Allow lowercased builtin field types.

• For Dynamic Build Event Handlers, pass an empty object as buildConfig if there is no buildConfig available.
• Add integrationLevel to netlifyIntegrationConfiguration.json and fix the formatting of the file.

Adds support for Dynamic Build Event Handlers.

Adds integrationLevel to IntegrationConfigurationSchema