Support typed dynamic filter metadata in access loggers

*Title*: *Support typed dynamic filter metadata in access loggers*

*Description*:
Nowadays access logger supports formatters for dynamic filter metadata, e.g. `%DYNAMIC_METADATA(NAMESPACE:KEY*):Z%`, but as the adoption of typed filter metadata will increase across Envoy filters, we need to introduce support for typed filter metadata in the access logger extension.

*Relevant Links*
Current [use case](https://github.com/envoyproxy/envoy/pull/33146) where proxy protocol filter sets typed filter metadata and could benefit from access logger's support for such type of data.