A startup that has built a neobank specifically to address the needs of freelancers and sole traders has picked up a growth round to continue expanding its business after seeing its usage grow by 1500% in a year. Lili, which provides a way for freelancers to use a single account both to manage their work and personal financial lives, along with tools to help manage the particular financial and accounting demands that come with being a one-person business, has picked up $55 million in a Series B round that it…