Setting up player build UI & object spawner.
Spine & Character Spawn added.
Updated background asset
Refactored character scripts to use inheritance.
Added layer test for collisions (attacking)
Fine tuned background positioning
Fixed X snapping and added highlight clamping.
Updated background positions
Merge commit 'e2ab45c8a9ec4f7e4f0a623d3686c79070c4e4ae' into Dave
Updated .gitignore to ignore Builds directory
Implemented grid management system
InputTypeChecker added
committing Merge
Added GridManager and InputManager to scene
Reorganised script folder
Commit before new folder structure.
Merge branch 'Ronan' into develop
Updates to Input checking in character placement, and switched CheckInput to use enums.
Fixed duplication issue in Grid Manager
Implementing rocks
Fixed dual controls for character placement.
Overhauled Grid Coordinate system