Update to v1.5.2 for new walker API 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.

Driver: [list] [*]Fixed an indexing bug with multiple joysticks [/list] Library: [list] [*]Added a walker algorithm [*]Added an error code for the [b]MGET[/b] function instead of raising an error [*]Added a new stable random generator [*]Fixed a type checking bug with JSON serialization [/list] Editor: [list] [*]Added font customization by config for code editor [/list]