feat(sunburst): Add typescript definition (#995)

Co-authored-by: shibby <shibbyr@gmail.com>

packages/sunburst/index.d.ts

@@ -0,0 +1,44 @@
+import * as React from 'react'
+import { Dimensions, Box, ColorProps, MotionProps } from '@nivo/core'
+
+declare module '@nivo/sunburst' {
+    export interface SunburstDataNode {
+        // optional because it works without a color
+        // however it does throw a warning if no value is set and the value is requested
+        color?: string
+        // optional because it could have a different name given by the 'identity' property
+        id?: string
+    }
+
+    export interface SunburstDataParentNode extends SunburstDataNode {
+        children: SunburstDataNode[]
+    }
+
+    export interface SunburstDataLeafNode extends SunburstDataNode {
+        // optional because it could have a different name given by the 'value' property
+        value?: number
+    }
+
+    export interface SunburstData {
+        data: SunburstDataParentNode
+    }
+
+    export type SunburstProps = SunburstData &
+        Partial<{
+            identity: string | ((node: SunburstDataNode) => string)
+            value: string | ((node: SunburstDataNode) => string)
+            childColor: string | ((node: SunburstDataNode) => string)
+
+            borderWidth: number
+            borderColor: string
+            cornerRadius: number
+            margin: Box
+
+            isInteractive: boolean
+        }> &
+        ColorProps<SunburstDataNode> &
+        MotionProps
+
+    export class Sunburst extends React.Component<Dimensions & SunburstProps> {}
+    export class ResponsiveSunburst extends React.Component<SunburstProps> {}
+}