[tyros2]

[V2.2.0 to V2.3.0]

- You can now change LSB values in the Pack.
- You can now select the icon of the content which is displayed on the instrument.
- You can now directly enter values by right-clicking on a graph when editing Voices.
- The Element name is now displayed when editing Custom Voices.
- You can now import SoundFont files (.sf2) as Contents.
- You can now export selected content as a Pack Project File (.ppf).
- Now supports PSR-S970/S770/S670.
- Other minor problems have been corrected.

* Do not use content to be released from now with previous versions (V.2.2.0 or earlier)