message: Demo: Ui fixes - gamma correction
  Added length limit for gamma correction value input.
  Made sure the user cannot input for gamma correction ".", as a start value, as this generates a fatal error.
  Made sure only one "." can be inputed for the gamma correction value.
diff: @@ -844,8 +844,15 @@ void AdiTofDemoView::render() {
  if (valueFieldSelectedG) {
  if ((key >= 48 && key <= 57) || (key == 46)) {
  + if ((valueG.size() < 11)) {
  + try {
  valueG += pressedValidKey;
  IRGamma = stof(valueG);
  + } catch (const std::invalid_argument &ia) {
  + status = "Input for IRGamma must be float!";
  + valueG = valueG.substr(0, valueG.size() - 1);
  + }
  + }
  } else if (backspace) {
  valueG = valueG.substr(0, valueG.size() - 1);
  if (valueG.compare("") != 0) {
  