[TIPC] fix slanet and layoutxlm ser fleet train error

[tipc] add tablerec-rare paddle2onnx tipc

add paddle2onnx support for tablerec-rare

[tipc] add slanet paddle2onnx

[TIPC] add layoutxlm_ser fleet train

[Application]印章弯曲文字检测识别

test=document_fix ，update table docs

[TIPC] add en_table_structure_PACT infer

add re predict

upload new cases

[tipc] fix slanet cpp infer bug

* update code_doc

* update code_doc

exposure params for recconaug