Support for Vue3

[mannyyang]

With Vue3 almost completed, I think it's a good opportunity to re-write this component. I volunteered myself to inherit the original's author vuetable-2 component because I believed it was a good component but there are some implementation decisions that I don't agree with. So, instead of trying to fix each part, I think it will be easier to start from scratch. Unfortunately, I won't be fixing any submitted issues until I added the beta version of the vue3 supported table.

[Pavel-Mukha]

@mannyyang Hi, did you manage to update the tables for vue3?

[gazben]

@mannyyang Any update on this?

[mannyyang]

Sorry guys, don't have time to develop this any further, let me know if you'd like to be added as a contributor and want to take over