Add support for first line text indent in TextFlow

[garybentley]

Please add a css property to allow the first line of text to be indented in a TextFlow.

i.e. -fx-text-indent: 1em;

This issue: https://bugs.openjdk.java.net/browse/JDK-8091174 has been around for a long time now. This feature is commonly used for those writing stories and novels since writers will often use the indent to delineate paragraphs rather than newlines.

[garybentley]

I raised a new feature request https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8231014

[tchudyk]

Hi, I'm also interested in that feature, but with negative values - outdent first line. i.e.. -fx-text-indent: -1em;