Function hdk::hash_path::anchor::list_anchor_tags

pub fn list_anchor_tags<T, E>(
    link_type: T,
    anchor_type: String
) -> ExternResult<Vec<String>>
where
    ScopedLinkType: TryFrom<T, Error = E>,
    WasmError: From<E>,

Old version of holochain that anchors was designed for had two part link tags but now link tags are a single array of bytes, so to get an external interface that is somewhat backwards compatible we need to rebuild the anchors from the paths serialized into the links and then return them.