Cash charitable contribution on 1040 line 12b

[philiplantz]

I didn't see a way to put a value on this line. I thought it might propagate from the cash charitable contributions line in the itemized deductions page, but it doesn't seem to do that.

[zakpatterson]

Thanks for the report!

[philiplantz]

I don't have a way to build and test yet, so I'm just putting this here for safekeeping.

F1040.ts
line 461:

    l12b = (): number | undefined => {
      if (this.info.itemizedDeductions && this.scheduleA === undefined) {
        return this.info.itemizedDeductions.charityCashCheck
      }
      return undefined
    }

(And remove the "TODO" at line 460.)