WIP: Add add_stop

Code duplication hell
2 jobs for !507 with rahix/user-space-ctx in 3 minutes and 37 seconds (queued for 2 seconds)
merge request
Name Stage Failure
lint Test
-		ctx_gradient_add_stop_u8(self->ctx, pos, red, green, blue, alpha);
+ ctx_gradient_add_stop_u8(
+ self->ctx, pos, red, green, blue, alpha
+ );

return MP_OBJ_FROM_PTR(self);
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1