Morpho

We discussed the following changes to D1Object.
-add: getDataInputStream() and setDataInputStream()
-modify: getData() and setData() to operate without actually storing the byte[]
-use the stream-based methods in Morpho.

D1Object will likely defer to the D1Client (with cache enabled) to retrieve the data input stream initially.

I am thinking about the two methods we will add (in comment 1):

getDataInputStream() and setDataInputStream()

I think we should call getDataOutputStream()

So we should have a way to persistent the data in D1Object.

I believe the DataStore interface concept is still very useful. You may find it at;
https://repository.dataone.org/documents/Projects/cicore/architecture/api-documentation/source/design/morpho/images/morpho-class-diagram.png

DataStore has two methods:

OutputStream get(Identifier id);
void set(Identifier id, InputStream input);

create an issue on the dataone redmine. So the dataone persons can know what we will do.
https://redmine.dataone.org/issues/3523

Now we use DataSource for D1Object to replace the byte[]

Original Bugzilla ID was 5796