[feature] Add Support for seo tags as in Wcm Core

**Is your feature request related to a problem? Please describe.**
Add Support for `getRobotsTags` as in Wcm Core. Currently method is not implemented in https://github.com/adobe/aem-spa-project-core/blob/master/core/src/main/java/com/adobe/aem/spa/project/core/internal/impl/PageImpl.java and therfor the default implementation is used in https://github.com/adobe/aem-core-wcm-components/blob/main/bundles/core/src/main/java/com/adobe/cq/wcm/core/components/models/Page.java#L450-L452 .

**Describe the solution you'd like**
Core components have the implementation here https://github.com/adobe/aem-core-wcm-components/blob/main/bundles/core/src/main/java/com/adobe/cq/wcm/core/components/internal/models/v2/PageImpl.java#L385-L397 , but actually we can just use delegation pattern.

**Describe alternatives you've considered**
None, we had to overwrite it in the client project

**Additional context**
N/A

Start with core/src/main/java/com/adobe/aem/spa/project/core/internal/impl/PageImpl.java and inspect how getRobotsTags is currently resolved. Compare it with the referenced WCM Core PageImpl.java implementation and Page.java default method; done means the SPA page supports getRobotsTags without requiring client projects to overwrite it.

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