Create a new DOFValue to hold a single value of type BLOB (uint8 *). 
- Resource Management:
 - This function allocates resources that must later be freed by calling DOFValue_Destroy.
 
- Parameters
 - 
  
    | blobSize | The size of the BLOB data.  | 
    | val | The BLOB (uint8 *) value to be held by the new DOFValue. This must not be NULL if blobSize > 0. | 
  
   
- Returns
 - The new DOFValue, representing a single value of type BLOB (uint8 *).
 
- Exceptions
 - 
  
    | NULL | is returned if the resulting DOFValue could not be created, or an invalid parameter was detected.  |