Use Pesde for package management

[vocksel]

I'll need some time to play around with Pesde first before we adopt it anywhere, but if the docs are any indication switching over to Pesde will give us...

1. Git dependencies which will make it easier to iterate on our existing packages (Storyteller, ModuleLoader)
2. Workspaces so if we want to fold our packages into the Flipbook repo we can
3. Support for existing Wally dependencies which should ease the migration
4. Looks to be better support for dev dependencies so we can finally stop shipping Jest with Flipbook, and
5. Multi-target support so we can also use it to manage Lune dependencies (or so it seems) and binaries

The main drawbacks I see are that Pesde is new tech and it looks like the support burden falls to 1-2 people. But currently the pros (if they work how I expect) outweigh the cons