Allow using custom widths and colors for layer borders.

Update the enableBorder API in SurfaceComposerClient so
that width and color can be specified for the border.
The information propagates through the pipe all the
way to the render engine so it can render the correct color
and width for the border

Test:go/wm-smoke.
Test: LayerBorder_test
Bug: 226529222

Change-Id: Id3ab853d5b4d6899a915f729b0d7be701cb5b167