[Model] Add PP-OCRV5_mobile_det Model Support (#43247)

* Feat: Add PP-OCRV5_mobile_det model

* fix code

* fix code

* fix

* use cv and np to replace pyclipper

* add model post_init()

* fix

* fix model init_weight

* fix rename module

* update

* update

* update

* update

* update

* update

* update

* update

* update

* update

* update

* update

* update

* Feat: Add PP-LCNet model

* fix doc

* update

* update

* update

* update

* update

* update

* update

* refactor

* init pp_lcnet_v3

* use load_backbone

* clean

* update

* fix

* add pp_lcnet_v3 docs and tests

* fix

* update lcnet test

* fix

* reuse server_det

* update

* fix

* fixup modular

* fix

* fix docs

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Co-authored-by: zhangyue66 <[email protected]>
Co-authored-by: vasqu <[email protected]>
Co-authored-by: Anton Vlasjuk <[email protected]>