* enhance scripts

* fix crash of tensor float * constructor

* fix fast check

* fix style

* add model obfuscate feature

* fix style

* fix array length bug

* add merge.sh to merge static library into one combined library

* disable OpenMP for iOS

* support creating tensor with raw pointer.

* fix style

* fix fpga compilation error

* add auto debug tools

* fix style

* develop nearestinterp op  fix bug in element add close #1647

* remove log
remove log

* add comments for imagetools

* format code

* format CMakeLists

* BugFix: lacking of header file of memset, strlen, stable_sort, n_copy

* Update ARM Linux CPU, GPU build docs for rk3399

* FPGA refactor

* disable FPGAKD

* recover misdeleted code segment

* Clear no persistable tensor array before predicting, fix crash when predicting with gpu debugging mode

* Fix code style

* Add fetch API for java, refine android log

* add prepare data and model script, modified corresponding docs:development_android and development_android_GPU

* Add verified multi-threading supported gemv_trans_mx1

* add comments for alloc and free

* optimize reduction progress of gemv_trans_mx1

* add macro for gemv_trans_mx1

* Fix multi-threadings incorrectnesss of armv7 neon gemv_trans_mx1

* add test_gemm_accuracy