[Add] TAXHeaderSheetHorizontal/VerticalSectionType
[Add] Methods using Vertical/HorizontalSectionType
[Add] DataSource method for number of rows/columns about body/header/footer and deprecated some properties.
[Fix] Background color.
[Fix] Returning illegal array in case that height/width of header/footer is 0.
[Add] Methods of reloading data for each section.
[Update] Invalidate layout in reloadData
[Add] Feature of scrolling in touching any section.
0.3.0