fill_constant kernel only registered float type, only the float data type is produced, which is obviously a bug.

Now, produce data based on the data type attr.

By the way, fix the cast kernel bug.

* add cast from uint8 to float, test=develop

* add full_api_static target and fix building errors, test=develop

* fix build errors, test=develop

* fix code style, test=develop

* fix lite/model_parser/pb/var_desc.cc, test=develop

* fix building errors, test=develop

* modify lite/tools/debug/CMakeLists.txt, test=develop

* add unsqueeze and range op. modify concat op test=develop

* modify exception in range_test_x86

* modify cast op, test=develop

* modify cast op and remove warning in argmax_test, test=develop