Update to v1.4.9 for new graphics commands and other improvements

BASIC8

BASIC8 is an integrated Fantasy Computer for game and other program development. You can create, share and play disks in a modern BASIC dialect, with built-in tools for editing sprite, tiles, map, quantized, etc.

Language: [list] [*]Fixed a crash bug with number parsing [*]Fixed a crash bug with invalid expression [*]Fixed a crash bug with invalid routine invoking [*]Fixed a memory leak when reassigning an array element with string [/list] Libraries: [list] [*]Added a `PLOT` function to put individual pixels [*]Added an `ARC` function to draw arc or pie shapes [*]Added an `ARCFILL` function to fill arc or pie shapes [/list] Editor: [list] [*]Added immediate saving on new sprite, map assets created [*]Changed plot mode of the pencil tool to linked [/list]