Whitespace in a scene name crash at launch.

[litelawliet]

Description
Starting a game built which has a whitespace in start_scene setting of Game.ini will result in a "scene not found or corrupted". This is due to how we trim the whitespaces in IniFile.Load() in OvTools.

To Reproduce
Steps to reproduce the behavior:

1. Create a scene with a space in its name, example: New Scene.ovgame
2. Set the start scene of Project Settings to this scene and apply
3. Build the game
4. See error

Expected behavior
We should rethink the way we trim whitespaces when reading settings of Game.ini

Screenshots