Add more DataTypes support for blobtrigger

Looks like only String, byte[], and POJO is supported for blobtrigger, so the entire blob contents are loaded into memory.

Is it possible that java worker adds datatype like `CloudBlockBlob`, to avoid loading huge blob into memory and leverage storage api? [Those types](https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob#trigger---usage) seems only supported in c# function.

Start by locating the Java worker's blobtrigger binding code that handles String, byte[], and POJO inputs, then review the Azure Functions blob trigger usage types linked in the issue. Done means a supported storage-backed type such as CloudBlockBlob can be used without loading the entire blob into memory.

Written by the indexing model from the issue text.