* [dev] fix paddle inference name problem, and update doc (#2430)

* fix paddle inference name problem, and update doc

* set default value

* fix inference lib name in static

* update deploy doc, fix build error of windows

* add annotation of PADDLE_LIB_NAME

* set min_subgraph_size=33 as default, fix bug of fcos_dcn_r50_fpn_1x

* fix path of script, test=document_fix

* replace clock by chrono for accurate elapsed time

* replace clock by chrono for accurate elapsed time in dygraph