* [feature] Add ChunkedArray to SWIG
* Add ChunkedArray
* Add ChunkedArray_API_extensions.i
* Add SWIG class wrappers
* Address some review comments
* Fix linting issues
* Move test to tests/test_ChunkedArray_manually.cpp
* Add test note
* Move ChunkedArray to include/LightGBM/utils/
* Declare more explicit types of ChunkedArray in the SWIG API.
* Port ChunkedArray tests to googletest
* Please C++ linter
* Address StrikerRUS' review comments
* Update SWIG doc & disable ChunkedArray<int64_t>
* Use CHECK_EQ instead of assert
* Change include order (linting)
* Rename ChunkedArray -> chunked_array files
* Change header guards
* Address last comments from StrikerRUS