A single exception is that ERR_HTTP2_* comes after ERR_HTTP_*.

Actual content not changed, just some blocks are moved around.

This is a part of the fixes hinted by #21470, which includes some tests
for error codes usage and documentation and enforces a stricter format.

PR-URL: #21485
Refs: #21470
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

This adds several sanity checks for error codes.

It scans:
 * all natives (js sources),
 * doc/api/*.md documentation
 * src/node_errors.h (errors definition from the C++ side).

There is also a whitelist of manually created errors from JS side,
currently consisting of ERR_HTTP2_ERROR and ERR_UNKNOWN_BUILTIN_MODULE.

Alsom all ERR_NAPI_ codes are whitelisted, as those are created directly
on the cpp side, without declaring them first.

The performed checks:

  1. All errors used from JS should be defined in `internal/errors` and
     present in its .codes object. Whitelist (mentioned above) applies.

  2. All errors instantiated from JS without arguments should support
     0-arguments version.

  3. All errors mentioned in doc should defined either in JS, C++, or
     in the whitelist.

  4. All errors mentioned anywhere should be documented.

  5. Documentation of error codes should be sorted, have no repeats,
     and include exactly one entry for every error code mentioned in
     the documentation, formatted as `/\n### (ERR_[A-Z0-9_]+)\n`.

  6. All doc entries for error codes should have appropriate anchors.

There is also a --report flag, which prints all the current issues and
exits without asserting, for manual inspection.

Individual fixes for those issues are landed in separate commits.

Refs: nodejs#21421
Refs: nodejs#21440
Refs: nodejs#21483
Refs: nodejs#21484
Refs: nodejs#21485
Refs: nodejs#21487
PR-URL: nodejs#21470