On demand summarizer for on demand summaries

[WillieHabi]

Description

This change introduces new public API loadSummarizerContainerAndMakeSummary to load a summarizer client container to produce an on-demand summary before disposing itself.

We also add new ISummaryConfigurationWithSummaryOnRequest summary config that we check during summarizer initialzation to turn of client election and internal heurstics.

[github-actions]

🔗 Found some broken links! 💔

Run a link check locally to find them. See
https://github.com/microsoft/FluidFramework/wiki/Checking-for-broken-links-in-the-documentation for more information.

linkcheck output

> fluid-framework-docs-site@0.0.0 ci:check-links /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test "npm run serve -- --no-open" 3000 check-links

1: starting server using command "npm run serve -- --no-open"
and when url "[ 'http://127.0.0.1:3000' ]" is responding with HTTP status code 200
running tests using command "npm run check-links"


> fluid-framework-docs-site@0.0.0 serve
> docusaurus serve --no-open

[SUCCESS] Serving "build" directory at: http://localhost:3000/

> fluid-framework-docs-site@0.0.0 check-links
> linkcheck http://localhost:3000 --skip-file skipped-urls.txt

 ELIFECYCLE  Command failed with exit code 1.

[WillieHabi]

@jatgarg @anthony-murphy gentle nudge on this.

[anthony-murphy]

i won't have a chance to re-review here. looks like all my feedback was included, so don't consider me blocking