[datatable] "data-table-collapsible-vertical" and "data-table-collapsible-horizontal"

[nimo23]

• Framework7 Version: 2

Actually, only "data-table-collapsible" exist which collapses the rows of the datatable vertically. Would be nice to replace this class with this:

• "data-table-collapsible-vertical" (behaviour like a "data-table-collapsible")
• "data-table-collapsible-horizontal": the rows are presented like "data-table-collapsible", but the scrolling is done by left and right instead of top and bottom. So with "data-table-collapsible-horizontal", we have a kind of "swiper-cards" (maybe, the horizontal swiping between the "card-row " can also be set by "data-swiper"-properties).