_CSharpWriteProjectMetadataSources property/information

The current source generator provides the location of the ProjectPath for the aspire enabled project; please consider adding addition project information about the project such as namespace, assembly and build output location so that these details may be used/accessed by extension methods/helpers which may then injected/copy or mount folder onto a prepared container; like Amazon/Lambda/dotnet

example usage: `builder.AddAmazonWebServiceLambda();`
example usage: `builder.AddAzureFunctions();`

the about would result in the creation of a container with a volume mapping and the ENTRYPOINT/CMD defined to point to the project build output folder, assembly and method supplied.