Fixed(terminal-emulator): Make VPA, VPR and HPA respect origin mode

[matthematics1137]

These bugs show with origin mode (DECOM, CSI ? 6 h) on and a top margin
below the first line:

• VPA (CSI Pn d) ignores origin mode. It counts from the first line of
  the screen and is not limited to the scroll region.
• VPR (CSI Pn e) and HPA (CSI Pn `) pass the absolute cursor
  row to setCursorPosition(). That function takes a row relative to the top
  margin in origin mode, so the top margin is added twice and the cursor jumps
  down. HPA even moves the cursor to another row.

To reproduce:

printf '\033[2J\033[3;5r\033[?6h\033[1dV\033[1;1H\033[3`H\033[?6l\033[r\033[8;1H'

In xterm, V and H both land on line 3, the first line of the region. In
Termux, V lands on line 1 and H on line 5.

After this change, VPA and VPR count from the top margin and stop at the
margins in origin mode, and HPA changes only the column. This matches xterm
(CursorSet() with the origin flag for VPA, VPR and HPA). tmux does the same
for VPA and HPA.

Test: CursorAndScreenTest.testCursorPositionWithOriginModeAndTopMargin.