BIG POS

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New Feature:
- Added BIG SOK Activity Logs
- Enhanced Rounding Display & Split Payment Feature
- Enhanced QR Ordering & QR Delivery Setting
- Enhanced Credit/Debit Card Surcharge Setting
- Enhanced Discount Feature to allow Decimal Value
- Enhanced Label Printing feature

Bug Fixes:
- Fixed payment page top display grandtotal no rounding issue
- Fixed custom payment charges not apply in app issue