ole32: The width of the metafile drawn should be 3 times the icon width in OleMetafilePictFromIconAndLabel.

ole32: Use the default icon title font when writing the caption text out in OleMetafilePictFromIconAndLabel.

ole32: The METAFILEPICT created by OleMetafilePictFromIconAndLabel should have its mapping mode be anisotropic, not isotropic.

ole32: Call SetWindowOrgEx and SetWindowExtEx in OleMetafilePictFromIconAndLabel so that the created metafile scales correctly.

Centre the icon and the label.

Document a few of the unknown fields in the presentation data header.

ole32: Add some tests for the IViewObject, IOleCache2 and IPersistStorage interfaces of the OLE data cache.

ole32: The advise sink for the data cache should be primed with the passed in aspects value, not an arbitrarily selected value.

ole32: Load cached data in the data cache into a STGMEDIUM type so it can be treated the same as set data.

for the future possiblity to add entries with IOleCache::Cache and
IOleCache::SetData.