Add a button to load config from notebook, rather than silently overwritting settings.

[tomprince]

There are a couple of things I would like to improve before landing:

• Better handling of picking spirits (so that you can see what is being applied, without being locked into spirits).
• Better timing of the broadcast for board placement (maybe this can be handled by adding the spirit placards to the mod).

Also, I'm not sure if the place I put the button is best from a UI design.

This is #36 rebased on the rewritten commits.

[tomprince]

There used to be a button a while back, but that was later removed to be in it's current iteration. Both MJ and I felt the button was unnecessary

Note that this is (I think) different that the original implementation (I think). That had a toggle for whether to load the data. This instead loads the data immediately when you click the button, letting the settings be visible and changeable.

[iakona]

What if instead of a button it auto loads the settings in? Just setup a timer that will periodically check the notebook tab?

[tomprince]

I do think that overwritting settings automatically is not user friendly. Whether you do it when you press start, or on a timer.

[tomprince]

What if instead of a button it auto loads the settings in? Just setup a timer that will periodically check the notebook tab?

Thinking about this further, my objection is only if a player has made any change to a config. So if we tracked if any changes have been made, and only loaded automatically if there were none, and then had a button to load otherwise, I think that would be be reasonable.

[tomprince]

(filed https://tabletopsimulator.nolt.io/573 to get an event, so we wouldn't need to poll)