Manually generating changelogs for time being.

This repository uses `main` for the default branch. This can reduce a
redirect when accessing the URI.

I'm working with a codebase that doesn't use Rails' default timestamp
columns, so being able to customise those would be helpful. This adds
`timestamp_columns` as a configurable option for classified sorting, and
sorts them in config order rather than alphabetical order.

Co-authored-by: Andrew W. Lee <git@drewlee.com>

During of annotation of indexes I have received exception
(`'String#sub': wrong argument type Symbol (expected Regexp)
(TypeError)`) when some of my AR models use `table_name_prefix` option
with Symbol value. In this PR I fixed it and added some specs to cover
it by tests

ENV: Rails 8.0.1, Ruby 3.4.1

We have a pretty large monolith (as well as a second database host that
tends to get bogged down after it runs for a while in development), so
we find it useful to see some progress indicator while annotations are
running.

This adds them in for each model when debug is set. This uses `puts` to
match the current debug log that exists.

When upgrading rails project with 200+ models from annotate to this gem
(thanks for creating and maintaining it!), we noticed that annotation
became a lot slower. We managed to pinpoint the problem to `indexes =
@klass.connection.indexes(table_name)` which was invoked from
`AnnotationBuilder::Annotation#columns` for every column of every model.

Original annotate:
```
bundle exec annotate --models  7,72s user 0,82s system 68% cpu 12,553 total
```
Before this change:
```
bundle exec annotaterb models  27,14s user 2,19s system 60% cpu 48,816 total
```
After this change:
```
bundle exec annotaterb models  7,22s user 0,82s system 82% cpu 9,748 total
```

Co-authored-by: David Hajčiar <david.hajciar@juicymo.cz>
Co-authored-by: Andrew W. Lee <git@drewlee.com>

When generating simple indexes, there is no identifier for unique
indexes. This PR updates the `simple_index` option to annotate with
`uniquely indexed` for unique indexes.

Screenshot from a project I tested with:

![image](https://github.com/user-attachments/assets/7647959e-1cc9-41d5-bd9d-134a96404dee)

Co-authored-by: Andrew W. Lee <git@drewlee.com>

We often want to specify multiple directories in `root_dir` and
`model_dir`.
For example, when using engines, packs-rails, etc.

* https://github.com/rubyatscale/packs-rails
* https://guides.rubyonrails.org/engines.html

This commit supports the glob pattern with these options, making it easy
to specify multiple directories.

fixes #99

Co-authored-by: Andrew W. Lee <git@drewlee.com>

Manually doing releases until an automated solution is put in place.