[9] Request for API review: 8143158 [Text, TextFlow] Make public API from internal "impl" APIs

[Leif Samuelsson]

Kevin, Phil, et al,

Please review the proposed new API for Text and TextFlow to open up
existing internal methods for text selection, etc.

Most of the new Text API is simply renaming of formerly deprecated
methods, while the TextFlow API is added to expose underlying layout
functionality and matches the corresponding Text API.

   https://bugs.openjdk.java.net/browse/JDK-8143158

Code review will follow.

Thanks,
Leif