Also fix fallouts found.
Windows clang-tidy CI job is a little pickier than I'd prefer due to the
`_CURL_TESTS_CONCAT=ON` option used there, and all macros considered
local, thus checked by the compiler. Upside: it revealed macro usage
dynamics in tests. If too annoying, `first.h` may be opted-out from the
concat logic. Some macros may also be deleted instead of `#if 0`-ing.
Follow-up to e0e56e9ae4#21550
Follow-up to 5fa5cb3825#20593Closes#21554
- move defines to header file
- make bit2str require < 8 unused bits
- make bool strings stricter
- make UTime2str show + or - for custom time zones
- removed unused 'type' argument to ASN1tostr() function
- fix int2str for negative values. All values below 10000 are now shown
in decimal properly, also possibly negative values.
Add unit test 1667 to verify ASN1tostr
Closes#21013
