* Add CollectiblesController
* bump controllers version
* add CollectibleDetectionController
* adapt to ERC1155 support changes in CollectiblesController
* update @metamask/controllers to v20.0.0
* update lavamoat policy files
* put collectibleDetectionController instantiation behind feature flag
This PR adds one LavaMoat background script policy or each build type. It also renames the build system policy directory from `node` to `build-system` to make its purpose more clear. Each build type has the original `policy-override.json` for `main` builds. The `.prettierignore` file has been updated to match the locations of the new auto-generated policy files.
We need to maintain separate policies for each build type because each type will produce different bundles with different internal and external modules.
Co-authored-by: Mark Stacey <markjstacey@gmail.com>
