Alt tag in new component Avatar

Is your feature request related to a problem? Please describe...

There is no way to add an ALT tag to the new Avatar Component resulting in a lower SEO ranking when using :src or src attribute in the component

Describe the solution you'd like

Please add :alt or alt in the Avatar component for images, like :src

Describe alternatives you've considered

I have added an alt tag in avatar component, but it adds it to the <span tag

Additional context

@tmorehouse Thank you so much and keep up the great work, Bootstrap-Vue is AWESOME ! :-)

[tmorehouse]

@Ozkaa BootstrapVue v2.9.0 has been released.

@tmorehouse Thank you so much, you guys rock!
Stay safe, Oscar