Added support for recently approved CPs.

Added support for CP-1287, CP-1294 and CP-1297 to the data dictionary.
Added support for Supplement 165 to data dictionary.

Added support for final text version of Supplement 165 (Breast Projection
X-Ray Image Storage SOP Class) to the data dictionary.
Added support for new UIDs from Supplement 165.

Added support for new SOP Class UIDs from Supplement 165 (Breast Projection
X-Ray Image Storage SOP Class).
Merge branch 'master' of http://git.dcmtk.org/dcmtk