+Dro data now controlled by the class
*Changed droData vector and associated vectors and function types from char to uint8_t
+Fixed typos in comments
+Fixed bug when checking for padding in DRO v0.1 header
*Added separate methods for DRO v0.1 and v2.0 formats
*Created GetOPLHardware method for returning OPL hardware type as a string
*Added dro play