Changes to Get holdings by chain and custody source

added the optional property error/authorization to the response with the default status

added the new solana enum value to the data/items/chain response property for the response status 200

added the optional property error/api_client_id to the response with the default status

added the required property data/items/assets/items/available_native to the response with the 200 status

added the required property data/items/assets/items/available_usd to the response with the 200 status

added the required property data/items/assets/items/pending_incoming_net_native to the response with the 200 status

added the required property data/items/assets/items/pending_incoming_net_usd to the response with the 200 status

added the required property data/items/assets/items/pending_outgoing_net_native to the response with the 200 status

added the required property data/items/assets/items/pending_outgoing_net_usd to the response with the 200 status

added the required property data/items/assets/items/symbol_rollup to the response with the 200 status

added the required property data/items/assets/items/unpriced to the response with the 200 status