Merge branch...

Merge branch 'amanzano/38-refactor-library-rpc-implementation-of-admire-remove_adhoc_storage' into 'main'

Resolve "Refactor library RPC implementation of `admire::remove_adhoc_storage`"

This MR moves the implementation of the RPC construction for
`ADM_remove_adhoc_storage` to `admire::detail` in `impl.[ch]pp`
similarly to other RPCs already refactored. This includes changing
the C ADM_types to native C++ types.

Closes #38

See merge request !62