Push of basic Player-Schematic handling structure. Classes included are:
InteractListener - Handles point setting for schematics using Player
Metadata
SchematicCommand - Base command for schematic handling using a Player
ItemStackUtils and MetadataUtils - Will be used for various utility
methods involving their name and NBT handling

Changes to TerrainManager.java :
Include init method for schematics, will involve commands/listeners, and
any future things planned.