Protocol Squad: Component IDs

Due to the recent collision ([#1](https://github.com/decentraland/protocol/pull/205/files#diff-5a8ac46fda55e27dd1be2000095834fa683f57f9bcd4d26a2053018664f834beR6) [#2](https://github.com/decentraland/protocol/pull/202/commits/5243189a109f870c620bbd710f5bb9ec6c18107d#diff-8b2d1bf3253b9a1975d093e8e2f21a68c6d898a4a011f6ae139a627e934b204aR8)) of IDs selected for new components, I'm creating this issue to report the IDs used by the protocol squad in the experimental branch. These components might or may not be adopted, but it's important not to break compatibility for those who deploy experimental scenes.

- **`1200`** - Gltf Node
- **`1201`** - Gltf Node State
- **`1202`** - Ui Scroll Result
- **`1203`** - Ui Canvas

Although there is no reserved range, we'd like to keep the 1200-1220 ids not used in the main branch so we can move safely between these numbers