When trying to use the floating window example, I got several times some crashes when expanding the window size.
It's caused in the GuiScrollBar function, when the maxValue is equal to the minValue (I don't know if this case is intended in the first place).
Because valueRange variable is maxValue minus minValue, then it is equal to 0, and triggers a crash later, when we use it in division (division by 0).
I'm not sure if it's the best fix, maybe minValue == maxValue is not indentend in the first place and we should fix this problem earlier?
* add floating window example
A reusable floating window function. Window can be moved around through its title bar, minimized with its close button, resized from the icon in the lower right. The window is kept within the application area if the user pushes it outside the window/screen. The contents of the window are clipped with `BeginScissorMode` only if required and also a `GuiScrollPanel` enables user to see the clipped content of the window if current window size does not encapsulate all the content.
* modify to add ability to create multiple windows
* formatting for pointer dereference style consistency
Now this variables could serve to a wider purpose to multiple controls, to allow the excusive mode usage and to identify the current control rectangle with a "unique" id.
* Fix `GuiDrawText()` drawing out of bounds when icon is used
* Fix glyphWidth not being set when text wrap is off
* Fixed text sometimes drawing out of bounds when middle or right aligned
This changes textSizeX to have a maximum equal to the bounds width,
preventing the text x-position being set left of the bounds.
textSizeX is unchanged if only an icon is provided, so that lone icons
can always be middle aligned.
* Show ellipsis at the end of text when it gets cut off
