Add auto-calibration to LD2410

[Aaroneisele55]

Describe the problem you have/What new integration you would like

I would like the LD2410 component to have the auto-calibration of the LD2420 component
Please describe your use case for this integration and alternatives you've tried:

It would make the setup (especially initially) much easier by taking away the initial tuning of the gate thresholds
Additional context

Alternative would be to set the gates manually