Merge pull request #49 from stan-donarise/master

matinfio: node support

lib/math/math.node.ts

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+namespace $ {
+
+	export const $optimade_cifplayer_lib_math = $node.mathjs as any
+
+}

lib/spacegroups/spacegroups.node.ts

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+namespace $ {
+
+	export const $optimade_cifplayer_lib_spacegroups = $node['@chemistry/space-groups']
+	export type $optimade_cifplayer_lib_spacegroups_info = import( './_spacegroups' ).SpaceGroupInfo
+
+}

matinfio/README.md

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+# `$optimade_cifplayer_matinfio`
+
+The module parses CIF, POSCAR or OPTIMADE structures and prepares them for visualisation.
+
+
+## Building
+
+```bash
+npm exec mam@latest optimade/cifplayer/matinfio
+```
+
+The web module bundle will be in `optimade/cifplayer/matinfio/-/web.js`
+
+
+## Usage example
+
+```js
+const structure = new $optimade_cifplayer_matinfio( data ).player()
+```
+
+### Parameter
+
+**`data`** 
+
+- An object or string containing a structure in CIF, POSCAR or OPTIMADE format. The format will be determined automatically.
+
+### Result
+
+**`structure`** 
+
+- An object of the following type:
+
+	```ts
+	type $optimade_cifplayer_matinfio_player_obj = {
+		cell_matrix?: number[][],
+		descr: {
+			a: number,
+			b: number,
+			c: number,
+			alpha: number,
+			beta: number,
+			gamma: number,
+			symlabel?: string,
+		},
+		overlayed: Record< string, string >,
+		atoms: {
+			fract: {
+				x: number,
+				y: number,
+				z: number,
+			} | null,
+			x: number,
+			y: number,
+			z: number,
+			c: string, //color
+			r: number, //radius
+			symbol: string,
+			label: string,
+			overlays: Record< string, string | number >,
+		}[]
+		sg_name: string,
+		ng_name: number,
+		info: string,
+		mpds_demo: boolean,
+		mpds_data: boolean,
+	}
+	```