D14702: Java: add binaries & hex-float, and support underscores in numbers

[Nibaldo González]

nibags added reviewers: dhaumann, cullmann, vkrause, Kate.

REPOSITORY
  R216 Syntax Highlighting

REVISION DETAIL
  https://phabricator.kde.org/D14702

To: nibags, dhaumann, cullmann, vkrause, #kate
Cc: kwrite-devel, kde-frameworks-devel, michaelh, kevinapavew, ngraham, bruns, 
demsking, cullmann, sars, dhaumann