Add SonarAnalyzer.CSharp and tighten Roslyn analyzer rules - #1482

Adds SonarAnalyzer.CSharp 10.27.0.140913 to all projects. Updates
Source.ruleset and Test.ruleset with comprehensive Sonar rule
configuration. Fixes all test analyzer warnings with actual code
changes rather than suppressions.

…tures.

… classes.

Replaces the [SuppressMessage] for CA1018 with an actual [AttributeUsage]
declaration, which also resolves the Sonar S3993 warning about specifying
AttributeUsage on derived types for readability.

Autofac intentionally maintains deprecated APIs for backward compatibility.
Tests exercise deprecated APIs to verify they still work. Warnings about
using deprecated code are not actionable in this context.

- CA1063 (Implement IDisposable correctly): enabled as Warning in both
  Source and Test rulesets for explicit enforcement.
- S3881 (IDisposable pattern): disabled because Autofac uses non-standard
  dispose patterns for container lifecycle management.
- Fixed comment/rule ordering where S1133 insertion displaced comments.

…lation.

- CA1711: test classes commonly use suffixes like Impl, Handler, etc.
- CA1721: test interfaces intentionally have properties matching methods.
- S125: commented-out code in tests is acceptable for examples/notes.