Add initial Pico-8 cartridges for testing

- Created test_cart.p8 with basic drawing functionality and a print statement.
- Created test_unix.p8 with a simple initialization function.

scripts/types/BooleanType.js

@@ -0,0 +1,19 @@
+/**
+ * @typedef {import('./TypeRegistry.js').TypeDescriptor} TypeDescriptor
+ */
+
+/** @type {TypeDescriptor} */
+export const BooleanType = {
+  id: "boolean",
+  label: "Boolean",
+  color: "#ff4f4f",
+  isVariable: true,
+  isLocalVariable: true,
+  defaultValue: false,
+  variablePropertyKey: "valueBoolean",
+  compatibleWith: [
+    { type: "string", convert: (v) => v ? "true" : "false" },
+    { type: "number", convert: (v) => v ? 1 : 0 },
+    { type: "color", convert: (v) => v ? 7 : 0 }
+  ],
+};