feat: ricochet incapable shells

src/core/blitz/canRicochet.ts

@@ -0,0 +1,7 @@
+import { ShellDefinition } from '../blitzkrieg/tankDefinitions';
+
+export function canRicochet(
+  type: ShellDefinition['type'],
+): type is 'ap' | 'ap_cr' {
+  return type === 'ap' || type === 'ap_cr';
+}