Importing sdmetrics crashes because of torch dependency

[amontanez24]

Environment Details

Please indicate the following details about the environment in which you found the bug:

• SDMetrics version: 0.20.0
• Python version:
• Operating System:

Error Description

Torch is being imported in the file below after this change. Since it isn't listed as a required dependency, it crashes whenever you import from sdmetrics unless you happened to already have torch installed.

SDMetrics/sdmetrics/single_table/bayesian_network.py

Line 7 in 89f2df2

import torch

Steps to reproduce

1. Create a new environment
2. Install sdmetrics and nothing else
3. Run

import sdmetrics

Additional Context

• We should wrap the importing of torch in a try/catch like we do here
  

  SDMetrics/sdmetrics/timeseries/ml_scorers.py

  Lines 28 to 33 in 89f2df2

  	def lstm_classifier(X_train, X_test, y_train, y_test):
  	"""ML Scorer based on a simple LSTM based NN implemented using torch."""
  	try:
  	import torch
  	except ImportError:
  	raise ImportError('Please install torch with `pip install torch`')

• We should add an install test workflow like we have here