EasyViewer-EPUB/Comic/Text/Tiff/PDF (Old version)

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- Fix SD card write permission error (Thanks 최현재)
- Improved caching algorithm
- Fix SMB error (Thanks Sung Lee)
- Fix [Keep screen on] error (Thanks 한승남, LynHue)
- Improved page navigation UI
- Added option to show EPUB details in file list
- Bold effect improved
- Improved app startup logic (Thanks STEFANO KIM)
- Improved [Show Pages Continuously] option (Thanks Charmed Espada)
- Samsung S Pen Support (Under Testing)
- Added folder display option
- Other bugs fixed