fix reg in appender
Fix Issue 11459 - std.container.Array bool constraint ambiguity
unittest and minor fixes
Merge pull request #1683 from monarchdodra/AppenderFixup

fix reg in appender
Merge pull request #1682 from monarchdodra/ArrayConstraint

Fix Issue 11459 - std.container.Array bool constraint ambiguity
Fix Issue 9737 - std.net.curl and SSL - documentation missing
Merge pull request #1687 from brocolis/fix9737

Fix Issue 9737 - std.net.curl and SSL - documentation missing
fix Issue 11489, add cast from const(LocalTime) to immutable
Merge pull request #1689 from 9rnsr/fix11489

fix Issue 11489, add cast from const(LocalTime) to immutable
Introduce package level `canSearchInCodeUnits`

And use it to solve bugs/simplify code.
Merge pull request #1517 from monarchdodra/fitsInCodeUnit

Fix bugs using `fitsInCodeUnit`
fixup issue  11479 and enum --> auto in examples
Merge pull request #1692 from blackwhale/bad-doc

[TRIVIAL] Fixup docs in std.regex
fix appenderNewCapacity for curLen == 0, start with minimum of 8.
Merge pull request #1695 from rainers/issue_11528

fix issue 11528: crashes or undefined behaviour of appender's first allocation
Fixup for issue 11532
Merge pull request #1698 from yebblies/issue11532

[trivial] Fixup for issue 11532
MutltiArray is CTFE-able; corrections for workarounds in std.uni
refactor TrieBuilder
tweak algorithm to actually fast-track zero-pages

Also significantly speed up replicateBits for single bit pattern case.