To add new marker to support long edge cutout

Currently, the cutout only exists in short edge of a display. It means
that the cutout only locates in short edge of the display in portrait
mode. The method to parse the cutout only supports top boundary or bottom
boundary cutout.

To modify the parser of cutout specification supports the long edge cutout
feature. CutoutSpecification handles the parsing rulers extracted from
DisplayCutout.

In order to make parsing faster, it doesn't use regular expression to parse
specification and String.split.

Test: atest \
    FrameworksCoreTests:android.view.DisplayCutoutTest \
    FrameworksCoreTests:android.view.CutoutSpecificationTest \
    SystemUITests:com.android.systemui.ScreenDecorationsTest \
    CorePerfTests:android.view.CutoutSpecificationBenchmark

Bug: 146875639
Change-Id: Ice3ad28ef29a6f11875c4946cf4a60ee792f1270