Select which components to merge

[niccokunzmann]

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

Mergecal would merge different types of components after #181.
However, we would like to be able to select change the default behavior.

• Select which components to merge (similar interface to recurring_ical_events.of(components=[...].
• By default only include VEVENT, VTIMEZONE
• Only generate the VTIMEZONE Generate VTIMEZONEs when not available #7 when VTIMEZONE is included in the components' list
• add this as a command line parameter
• consider the combination with generating the VTIMEZONE Generate VTIMEZONEs when not available #7

Describe alternatives you've considered

I would like to configure this as it makes sense to have a stable default behavior.

Additional context

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

Are you willing to resolve this issue by submitting a Pull Request?

• Yes, I have the time, and I know how to start.
• Yes, I have the time, but I don't know how to start. I would need guidance.
• No, I don't have the time, although I believe I could do it if I had the time...
• No, I don't have the time and I wouldn't even know how to start.