Also updates other references based on Preview 1 and moves from
Microsoft.Composition to System.Composition

Fixes #19675

state progress as below

1. StartCandidacyRequirementsTracking <- first time user user LB (only once per user)
2. HasMetCandidacyRequirements <- when requirement is met (only once per user)
3. AnalyzerEnabledFlight <- when the user accepted as flight group (multiple times until user take action)
4. InfoBarShown <- when info bar is shown (multiple times until user takes an action)

actions user can take. (this can only happen once)
1. AnalyzerVsixHyperLine <- user choose to go to the link
2. NeverShowAgain <- user decide not to participate in the experiment

if user choose to install vsix (this can only happen once - unless user manually reinstall the vsix...)
1. Installed
2. Uninstalled

the first time user installed the vsix, we will report these extra info
1. DocumentDiagnostics - report only once per a document
2. ProjectDiagnostics - report only once per project

these 2 report include count per errors and FSA status. these only report once and never report again.

Now that we are using the correct version of IBCMerge we can re-enable its usage on our
workspaces components.

https://devdiv.visualstudio.com/DefaultCollection/DevDiv/_workitems?id=297536&_a=edit&triage=true

we found 2 issues. 1. hard to validate persisted data and 2. recalculating checksum is faster than reading from storage.