It was reported in https://github.com/ctran/annotate_models/issues/762 that column defaults were broken. This reverts changes made in #677 to restore the expected behavior of column defaults. 

For the time being columns with associated enums won't be working.

This is the final completed version of refactoring AnnotateRoutes.

* Fix new lines after comments for rubocop compatability

Fix #552, #607 

The test cases of AnnotateModels.get_schema_info was separated into two sections.
So I merged them into one, and refactor test cases.

This PR is new version of #741.

Refactor test cases for entire rewrite in the future.

Refactor of test cases for AnnotateRoutes.remove_annotations after #736.

Refactor test cases for AnnotateModels.get_schema_info with Globalize gem

I fixed message to make them more natural English.

Refactor RSpec for AnnotateModels (4) - AnnotateModels.get_schema_info (without custom options) (#735)

I refactored test cases of AnnotateModels without custom options.

I refactored RSpec file for another large scale refactor in another PR.

The scope of this pull request is to allow annotate_models to generate models documentation using YARD. This is the first step, I'll add more features later.

* Structuralize RSpec test cases of AnnotateModels.get_schema_info (with custom options)

* Replace expression expansion to plain text

* Refactor RSpec test cases of AnnotateModels.get_schema_info (with custom options)

* Change position of test cases

* Add columns managed by Globalize gem

Globalize hooks into the model and removes the translated columns
from the `klass.columns`. This commit checks if globalize is
hooked into the model and adds the necessary columns to the
annotation array.

* Disable Rubocop Metrics/BlockLength for spec files

RSpec spec files can contain long blocks easily because
of the outher describe methods. So this rule makes not too much
sense for these files.

I refactored and structuralized RSpec test cases of AnnotateModels for readability and scalability because it was too complex to read.

cf. #718 
In this PR, I refactored test cases of some methods in `AnnotateModels`.
I will refactor test cases of other methods in another PR.

I refactored `AnnotateRoutes.routes_exists?` and methods using this.
The points are as follows.

*   Removing `puts` in `AnnotateRoutes.routes_exists?`
*   Using `File.exist?` instead of `File.exists?` because `File.exists?` is deprecated
*   Renaming `AnnotateRoutes.routes_exists?` to `AnnotateRoutes.routes_file_exists?` in order to make the name of method more explanatory

This change converts .all_options into a constant and moves it into Annotate::Constants. It also changes usages of .all_options.

Same problem returned by @janosrusiczki in #430

Spatial columns with activerecord-postgis-adapter (5.2.2) are not displayed nice

```
# name           :string(3)
# active         :boolean          default(FALSE), not null
# geom           :geometry({:srid= geometry, 4326
```

That's come from activerecord-postgis-adapter, with redefined columns as such :

``` 
#<ActiveRecord::ConnectionAdapters::PostGIS::SpatialColumn 
  @sql_type="geometry(Geometry,4326)",
  @geo_type="Geometry",
  @geometric_type=RGeo::Feature::Geometry,
  @srid=4326,
  @limit={:srid=>4326, :type=>"geometry"}
  [...]
>
```

This fix displays them like this :

```
# name           :string(3)
# active         :boolean          default(FALSE), not null
# geometry       :geometry         geometry, 4326
```

Another possibility would have been to display them as below, but it involves a lot of extra-spaces for other columns.

```
# name           :string(3)
# active         :boolean                   default(FALSE), not null
# geometry       :geometry(Geometry, 4326)
```

Changed references to `--additional_file_patterns` to be `--additional-file-patterns` to make it consistent with other flags.

Adds tests for `.include_routes?`, `.include_models?`, `.skip_on_migration?`. Also moves the `TRUE_RE` under the `Annotate::Constants` namespace.

Prior to this change, `Annotate.include_models?` returned the inverse of `Annotate.include_routes?`. This made it so annotating models and routes was not possible to do together.

This PR adds an explicit `--models` flag and also adds it the option to `lib/generators/annotate/templates/auto_annotate_models.rake` with the default being set to `false`. 

Fixes #563 and undoes the bug introduced in #485.

In looking into #563, I realized there are gaps in test coverage. For example, `bin/annotate` doesn't have any tests. 

Tidying the spec directory to make it easier to add tests in future work.