Add exclude_inherited option

[GMartigny]

Pull Request Template

Description

Add an option to excludes inherited symbols.

When you have a lot of classes with inheritance, the last child will inherit from all its ancestor. Potentially having a lot of methods polluting the documentation.

Sometimes, it could be better to display all available methods, but in my case it created too much noise. That's why I left it under an option. If users don't set this option to true, then the current behavior is used.

Type of change

Please mark options that is/are relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Other (if so, then explain below briefly)

[ankitskvmdam]

Thanks, @GMartigny for this PR! It is really a nice feature to have.