Added Target based Editor in XMLChecker

Completed checkXML() in XMLParser
XMLParser will look for xml files and validate it against a schema. 

The schema file is a generated file from level1-5.xml, this schema is not complete, however when we do add a level that incorporates all the tool, will allow us to bypass silly warning

A new prefab which isnt really a prefab is made which is called bugHint, its mainly there to test the code

All of the hero prefab has the correct projectile gameobject

A new script file HintColider is made so that when the projectileHint hits it, it will display a hint 

LevelGenerator changes includes going through the childnode and will look for a attribute called hint, if there is a hint attribute it will then create a new game object
Also commented out Debug Messages since they were annoying

LevelManager has a new function called CreateHint, which will make a gameobject hint

stringLib has a new const and level1-3.xml has been changed to test the hint system

Sidenote:
Stuff todo include making this much better, right now it is just plain, and will work, The placement of the hints arnt correct as well