ModButtonOption does not have a tooltip

[tinyhoot]

Describe the bug
When trying to create a ModButtonOption without the attribute-based system it is impossible to create a tooltip for the button. It seems that ModButtonOption.cs is the only ModOptions class without a Tooltip field and a tooltip argument is also missing from its ModButtonOption.Create() method, which is inconsistent with every other ModOption.

To Reproduce
Steps to reproduce the behavior:

1. Go to IDE
2. Try to use ModButtonOption.Create() with tooltip = "my cool tooltip"
3. Get yelled at by the compiler

Expected behavior
Being able to add a tooltip to a button just like any other option.

[LeeTwentyThree]

It appears that there is no way to add tooltips for buttons in the base game, as opposed to the other options.

[JKohlman]

Neither did the color picker iirc so it should be easy enough to add templated on that one