Deprecate tupleNZipped operations

[julienrf]

These operations have been replaced by lazyZip:

// old style
(xs, ys).zipped.map((x, y) => x + y)

// new style
xs.lazyZip(ys).map((x, y) => x + y)

We should deprecate the implicit conversion that makes the zipped operation available.

[joshlemer]

@julienrf does this mean that all of these are deprecated?

• Tuple2Zipped
• ZippedIterable2
• Tuple3Zipped
• ZippedIterable3

[joshlemer]

And of course, the conversion that enables (xs, ys, zs).zipped

[SethTisue]

ALL THE THINGS

[joshlemer]

For now I have not deprecated the above 4 classes, just the implicit conversions, but will if that's what's wanted.

[SethTisue]

direct usages of these classes are almost certainly exceedingly rare or nonexistent, but regardless, I don't see a downside to deprecating them

[SethTisue]

anyway deprecating them will help us remember to delete them later