Version 0.6.5 - parity with mv3d and mz3d

✔️MZ3D and MV3D now build from the same code base, ensuring feature parity

✔️Added "base height" configuration option
✔️Sprite offset now changes dynamically with camera angle
✔️fix relative pixel texture coordinates on second half of B+ tilesheet
✔️allow relative texture coordinates for events with tile graphic
✔️fix player with 3d model crashing on transfer
✔️fix camera not following disabled characters properly
✔️ fix broken animated tiles in mz3d
✔️ fix pixel  textures for cross shape

Also, demo version now available for mz3d.