[detection] model training iteration with extended multilingual dataset

[felixdittrich92]

🚀 The feature

Retrain detection models from scratch with the updated augmentation pipeline & multilingual extended detection dataset

• db_mobilenet_v3_large
• db_resnet50
• db_resnet34
• linknet_resnet18
• linknet_resnet34
• linknet_resnet50
• fast_tiny (can be ported to TF @felixdittrich92 )
• fast_small (can be ported to TF @felixdittrich92)
• fast_base (can be ported to TF @felixdittrich92)

args:

--rotation
--save_interval
--epochs 20

benchmarks: @felixdittrich92

goal:

• Improved results on non latin text
• Model robustness and improvements on edge cases like:

#1535
#1547
#1562
#1570
#1795