store quantumleap version in metadata

[chicco785]

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

At the time being, it's not possible to know with which version of ql a schema was created, this could be useful for updates.

Describe the solution you'd like

Being able to retrieve the schema version for all backends used. This could be useful for updating schemas between one version and the other.

Describe alternatives you've considered

N/A

Additional context

N/A

[daminichopra]

Hi @chicco785 @c0c0n3 , Please assign. I would like to work on this