v0.2.0

• Make Struct object for pointer_to_nested_list. #9
• Simplify buffer generation in cybuffer. #11
• Use tobytes in hex to make data C contiguous. #12
• Simplify initialization of cybuffer with a builtin array. #13
• Drop UBYTE_TC. #14
• Simplify array's shape and strides adjustment. #15
• Simplify dynamic memory allocation/deallocation. #16
• Add getbuffer. #17
• Handle array format fixes with C strings. #18
• Drop unused array import in setup.py. #19
• Drop extra blank lines. #20