clean code for MapCoordinates


* add/correct comments
* add toString
* add hashCode
* add equals
change Author "till" -> "Till Hülsemann"
Add/Improve Comments in MapBlock
rename class Map -> Map3D
rename class Map -> Map3D


I forgot to add some changes to the previous commit
Merge branch 'master' of https://github.com/Xilebo/byoc.git

Conflicts:
	src/model/map/MapBlock.java