[REQ] Please add schema name to log message that tell me which the problem is.

Is your feature request related to a problem? Please describe.

When I generated python file with OpenAPI Generator, the following warning occurred.
But I can't find which schema object is problem from the following log.

[main] INFO  o.o.codegen.DefaultGenerator - OpenAPI Generator: python (client)
[main] INFO  o.o.codegen.DefaultGenerator - Generator 'python' is considered stable.
[main] INFO  o.o.c.languages.PythonClientCodegen - Environment variable PYTHON_POST_PROCESS_FILE not defined so the Python code may not be properly formatted. To define it, try 'export PYTHON_POST_PROCESS_FILE="/usr/local/bin/yapf -i"' (Linux/Mac)
[main] INFO  o.o.c.languages.PythonClientCodegen - NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file for CLI).
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - Unknown type found in the schema: object
[main] WARN  o.o.codegen.DefaultCodegen - allOf with multiple schemas defined. Using only the first one: Error. To fully utilize allOf, please use $ref instead of inline schema definition
[main] WARN  o.o.codegen.DefaultCodegen - allOf with multiple schemas defined. Using only the first one: Error. To fully utilize allOf, please use $ref instead of inline schema definition
[main] WARN  o.o.codegen.DefaultCodegen - allOf with multiple schemas defined. Using only the first one: Error. To fully utilize allOf, please use $ref instead of inline schema definition
[main] WARN  o.o.codegen.DefaultCodegen - allOf with multiple schemas defined. Using only the first one: Error. To fully utilize allOf, please use $ref instead of inline schema definition
[main] WARN  o.o.codegen.DefaultCodegen - allOf with multiple schemas defined. Using only the first one: Error. To fully utilize allOf, please use $ref instead of inline schema definition

Describe the solution you'd like

Please add schema name to log message that tell me which the problem is.

Additional context

• OpenAPI Generator v4.0.0

The warnings are emitted by DefaultCodegen during Python client generation; start there and trace the schema-processing paths that produce the "Unknown type" and allOf messages. Done means those warnings identify the problematic schema while preserving the existing warning behavior, with relevant generator tests passing.