US-1: Use unique bullets in bulleted lists

[sdutoit]

N3733 US-1 says:

In lists of specifications, the use of anonymous bullets makes it difficult (in correspondence and speech) to refer to individual list items. Moreover, the longer the list, the greater the opportunity to mistake the structure, most especially in the presence of bullets in sublists.

It goes on to propose:

In all lists of bulleted items, provide a distinct numbered or lettered identification in place of each bullet. Because paragraphs are already numbered, it seems best to use letters for top-level list items within paragraphs and then to use Roman numerals for any sublist items. (A few parts of the Standard already do this.)

[sdutoit]

NB Response is going to be:

We believe this is, in principle, a good suggestion, but the scope of this change makes it more appropriate to explore the options for enumeration of bullets in the C++17 timeframe prior to the issuance of a Committee Draft.

[zygoloid]

Result of discussion: put <paragraph>.<bullet number> in the left margin next to each bullet (or <paragraph>.<bullet number>.<subbullet number> for deeper nesting).