Fabric compatibility

**Is your feature request related to a problem? Please describe.**

I'd like Paper to be proven usable on Fabric renderer :)

**Describe the solution you'd like**

Haven't investigated. According to @lukewalczak there's possibly some code to migrate using `measure` functionality. To be discovered.

该 issue 未指明任何文件或测试。首先调查 issue 中提到的 measure 功能，以及 Paper 组件在 Fabric renderer 下的行为。完成的标准是建立并实现 Fabric 兼容性，并验证 Paper 可在 Fabric 上使用。

由索引模型根据 Issue 内容生成。