Mountain trip logger

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Version 10.4 (2021/1/2)
-Fixed the track sharing bug occurs at Android 10 device of storage permission not granted.
-(GOLD only)Support multiple file sharing at batch function.
-Bug fix and improvements.

Version 10.3 (2020/11/24)
-Fix bugs occur at Android 10 device.

Version 10.0 (2020/9/6)
-Supports automatic backup to Google Drive even if it is not the GOLD version. Setting at MENU-Backup. For this, added internet permission.
-Bug fix and improvements.