Console logging features and issues

[deepchoudhery]

There are gaps in the current console logging for the dotnet-scaffold ecosystem. Compiling a simple list of items.

• dotnet-scaffold output being all colorized green due to all redirected console output is stdout. Need to differentiate the different ILogger.LogLevels (Error, Warn etc.) and colorize them accordingly.
• Currently no way to write logs to disk at the moment (dumping logs, traces etc.)
• There is no way to consolidate logs on disk between tools (dotnet-scaffold-aspire, dotnet-scaffold-aspnet and more soon)
• There is no trace logging which would be super helpful in debugging (MSBuild registration, more detailed scaffolder information). Nothing being logged as trace (likely using ILogger.LogTrace) and no way to enable trace logging (environment var or through a commandline parameter)