dev(hansbug): add stream support for paralleling the calculations in tree

dev(hansbug): add test for torch1.12.0 and python3.10

dev(zjow): pytorch upgrade to 1.12

dev(hansbug): remove support for py3.6 && add support for windows and macos

dev(hansbug): use newer version of 1.4.1

release(hansbug): use version 0.2.1

doc(hansbug): add documentation for np.stack, np.split and other 3 functions.

fix(hansbug): add subside support to all the functions.