[Paper][material-next] Add Paper component

[mj12albert]

Part of #38374

Migration Steps

• Copy component files from material (v5) to material-next
• Remove deprecated components and componentsProps props
• Drop support for ThemeProvider in favor of CssVarsProvider
• Migrate component to Typescript
• Refactor component to use useSlotProps from Base UI
• Implement Material You design specs
• Add component playground to v5 docs
• Refactor styles to use component CSS Variables

Note

• Paper uses getOverlayAlpha which material-next is importing from material, we can copy it over to material-next/styles

[mj12albert]

There are big changes to elevation in MD3: https://m3.material.io/styles/elevation/overview