Handle import errors of extras modules

[dev-rinchin]

🚀 Feature Request

LightAutoML should inform a user about additional extras that he needs to install to avoid the import problem. Similar to: https://github.com/sb-ai-lab/LightAutoML/blob/f2fa4107b5256e65ace778561ac62037f48d3190/lightautoml/report/report_deco.py#L1134

https://github.com/sb-ai-lab/LightAutoML/blob/f2fa4107b5256e65ace778561ac62037f48d3190/lightautoml/text/tokenizer.py#L21

Or automatically install missing extras as in following proposal.

Proposal

try:
    from weasyprint import HTML
except ImportError:
    import pip
    pip.main(['install', '--user', 'lightautoml[pdf]'])
    from weasyprint import HTML

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