dl functions are provided by all glibc-based systems (GNU/Linux, but
also GNU/Hurd, GNU/kFreeBSD)

Android move version info to Gradle style

* move version info to Gradle style

* Use VERSION_NAME in loader

* apply review suggestion

* Ticket 16274: Fix compile error on std::vector.insert

* See https://github.com/opencv/opencv/issues/16274

backport commit 659ffadd

Add explicit size check for Rodrigues() function to prevent issue like https://stackoverflow.com/questions/58969553

* add cv::compare test when Mat type == CV_16F

* add assertion in cv::compare when src.depth() == CV_16F

* cv::compare assertion minor fix

* core: add more checks

* enable tests for DNN_TARGET_CUDA_FP16

* disable deconvolution tests

* disable shortcut tests

* fix typos and some minor changes

* dnn(test): skip CUDA FP16 test too (run_pool_max)