Accept PUA characters, ZWNJ and ZWJ as input in TextInput/Edit

Private Use Area characters are quite valid input characters when used
in combination with a custom font. Joiners also serve an important language
purpose in semitic writing systems.

[ChangeLog][QtWidgets][Input] Support characters in Private Use Area, as well as
zero-width joiners and zero-width non-joiners in input in TextInput and TextEdit.

Task-number: QTBUG-42074
Task-number: QTBUG-57003
Change-Id: I4a9d6b9ea172d29375c20abfb7aebb6748c5d300
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>

0 files changed, 0 insertions, 0 deletions