Set up a checklist of attention points for users of zos-core, including but not limited to:
Move all constructors logic to initializers, using Initializable or Migratable behaviours
Note that fallback functions called via transfer will get 2/3s of the usual gas, so tests on the implementation may succeed, but fail when called via the proxy
Set up a checklist of attention points for users of zos-core, including but not limited to: