[Fix] Add more verbosewandb import error

[dbogunowicz]

More verbose error message instructing the user to install wandb. Fix for https://app.asana.com/0/1201735099598270/1203877616112261/f

Traceback (most recent call last):
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/utils/logger.py", line 41, in <module>
    import wandb
ModuleNotFoundError: No module named 'wandb'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/ubuntu/damian/sparseml/src/sparseml/transformers/text_classification.py", line 55, in <module>
    from sparseml.pytorch.utils.distributed import record
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/__init__.py", line 51, in <module>
    from .framework import detect_framework, framework_info, is_supported
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/framework/__init__.py", line 24, in <module>
    from .info import *
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/framework/info.py", line 26, in <module>
    from sparseml.pytorch.sparsification import sparsification_info
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/sparsification/__init__.py", line 24, in <module>
    from .distillation import *
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/sparsification/distillation/__init__.py", line 17, in <module>
    from .modifier_distillation import *
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/sparsification/distillation/modifier_distillation.py", line 24, in <module>
    from sparseml.pytorch.sparsification.distillation.modifier_distillation_base import (
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/sparsification/distillation/modifier_distillation_base.py", line 30, in <module>
    from sparseml.pytorch.sparsification.modifier import (
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/sparsification/modifier.py", line 36, in <module>
    from sparseml.pytorch.utils import LOGGING_LEVELS, BaseLogger, LoggerManager
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/utils/__init__.py", line 26, in <module>
    from .logger import *
  File "/home/ubuntu/damian/sparseml/src/sparseml/pytorch/utils/logger.py", line 47, in <module>
    raise ModuleNotFoundError(
ModuleNotFoundError: Error: Failed to import wandb. Please install the wandb library in order to use it.

[dbogunowicz]

It was necessary to move the ModuleNotFoundError inside the init of the function, not to automatically throw an error during the import of the loggers module.