Removed positive horizontal acre boundary and implemented dynamic vector growth.
There is no longer a limit to how many positive horizontal acres can be traversed, and there is no longer a boundary to prevent you from exploring beyond the values found within ./res/data/acre.dat. Instead, moving rightward will generate a new acre for those coordinates on the fly, should the acre not exist already. Through this, acres can and will be loaded and generated upon request, rather than at run-time. This will reduce loading times on lesser powerful system, such as the Raspberry Pi. Also, through this new system, the need for ./res/dat/acre.dat will be no more.