Ignore after and first attributes with default values

[puzzledpolymath]

Since the pull request cycle/database#226 has been merged, it might be a good idea to ignore the first and after attributes when equaling the default values? So migrations are not declaring them for every column when not needed.

🔍 What was changed

• Added logic to ignore the first and after attributes when equaling the default values.
• Added some test cases (using Reflection) for the Renderer::columnOptions method.

🤔 Why?

When thinking about how column positioning would be used in migrations, I'm of the opinion they would be defined manually. As in I can't imagine defining this for an entity, instead I'd likely generate a migration, say containing an added column and then modify the options to position the new column after and existing column, to suit an order I prefer.

    public function up(): void
    {
        $this->table('api_key')->addColumn('expires_at', 'datetime', [
            'nullable' => true,
            'defaultValue' => null,
            'comment' => 'Date and time API key will expire',
            'after' => 'updated_at',
        ]);
    }

📝 Checklist

• How was this tested:
  • Unit tests added

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.29%. Comparing base (7d977c2) to head (f67926b).
Report is 4 commits behind head on 4.x.

Additional details and impacted files

@@             Coverage Diff              @@
##                4.x      #64      +/-   ##
============================================
+ Coverage     95.26%   95.29%   +0.02%     
- Complexity      244      248       +4     
============================================
  Files            30       30              
  Lines           782      786       +4     
============================================
+ Hits            745      749       +4     
  Misses           37       37              

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