Better Module_Does_Not_Exist exception

[JaroslavTulach]

Pull Request Description

The previous code was throwing UnknownIdentifierException when a module wasn't found. That's pretty misleading. Especially when Truffle infrastructure converts such exception to another one. Enso has a dedicated error when module cannot be found. Let's use that one.

Checklist

Please ensure that the following checklist has been satisfied before submitting the PR:

• All code follows the
  Scala,
  Java,
• Unit tests have been written where possible.

[JaroslavTulach]

Example of previous error:

    - [FAILED] Default Encoding heuristics also work in File.read [73ms]
        Reason: An unexpected panic was thrown: java.lang.UnsupportedOperationException: Non readable or non-existent member key 'get_module' for object 'Enso.Top_Scope'(language: Enso, type: Unknown).
        at <Unknown Location> related to org.graalvm.polyglot.Value<TopLevelScope>.invoke
        at <Unknown Location> related to com.oracle.truffle.host.HostObject.doInvoke
        at <enso> File_Format.format_types<arg-1>(C:\runner\_work\enso\enso\built-distribution\enso-engine-2024.5.1-dev-windows-amd64\enso-2024.5.1-dev\lib\Standard\Base\2024.5.1-dev\src\System\File_Format.enso:37:44-72)
        at <enso> File_Format.format_types(C:\runner\_work\enso\enso\built-distribution\enso-engine-2024.5.1-dev-windows-amd64\enso-2024.5.1-dev\lib\Standard\Base\2024.5.1-dev\src\System\File_Format.enso:37:16-73)

the new error will look like:

 - [FAILED] should return empty vector if no files were provided [2ms]
        Reason: An unexpected panic was thrown: (Module_Does_Not_Exist.Error 'Standard.Table.Return_As_Table')
        at <Unknown Location> related to org.graalvm.polyglot.Value<TopLevelScope>.invoke
        at <Unknown Location> related to com.oracle.truffle.host.HostObject.doInvoke
        at <enso> Return_As._get_known_return_classes<arg-1>(enso-0.0.0-dev/lib/Standard/Base/0.0.0-dev/src/Data/Read/Return_As.enso:21:33-65)
        at <enso> Return_As._get_known_return_classes(enso-0.0.0-dev/lib/Standard/Base/0.0.0-dev/src/Data/Read/Return_As.enso:21:5-66)
        at <enso> case_branch(enso-0.0.0-dev/lib/Standard/Base/0.0.0-dev/src/Data/Read/Return_As.enso:51:21-45)
        at <enso> Return_As.type.resolve(enso-0.0.0-dev/lib/Standard/Base/0.0.0-dev/src/Data/Read/Return_As.enso:41-58)
        at <enso> Data.read_many(enso-0.0.0-dev/lib/Standard/Base/0.0.0-dev/src/Data.enso:146:17-40)
        at <enso> File_Read_Spec.add_specs.windows_log<arg-1>(test/Base_Tests/src/System/File_Read_Spec.enso:145:18-53)