DSI proposal: edition number have 4 or less integers of 4 or less digits

[castedo]

Currently the DSI spec allows any numbers of integers inside an edition number and each integer is of unbounded size. Hidos places no restriction.

I proposal that Hidos and the DSHM toolkit manual should require no more than 4 integers in an edition number and integers can not be more than 4 digits.

I don't think I've ever seen semantic versions longer than 4 components. I can image an author wanting to use year as an integer, but needing more than 4 digits just seems like edition number abuse. So to keep things simple, cap at 4 integers and 4 digits.

[castedo]

Edition 2.3 has been updated https://perm.pub/1wFGhvmv8XZfPx0O5Hya2e9AyXo/2.3

Hidos issue created: https://gitlab.com/perm.pub/hidos/-/issues/8