feat: add Icon component

stories/components/13-Icon.stories.tsx

@@ -0,0 +1,98 @@
+import * as React from 'react';
+import { storiesOf } from '@storybook/react';
+import { withKnobs } from '@storybook/addon-knobs';
+import { propsTable } from '../common/propsTable';
+
+import { Icon } from 'mo/components/icon';
+import { Button } from 'mo/components/button';
+
+const stories = storiesOf('Icon', module);
+stories.addDecorator(withKnobs);
+
+const propDefinitions = [
+    {
+        property: 'render',
+        propType: '() => React.ReactNode',
+        required: false,
+        description: 'Default render content',
+        defaultValue: null,
+    },
+];
+
+stories.add(
+    'Basic Usage',
+    () => {
+        return (
+            <div>
+                <h2>简述</h2>
+                <p>
+                    This `Icon` Component based on{' '}
+                    <a href="https://microsoft.github.io/vscode-codicons/dist/codicon.html">
+                        vscode codicons
+                    </a>
+                    , so you just can using icons from this library.
+                </p>
+                <div>
+                    <h3>使用示例 - Basic</h3>
+                    <div style={{ display: 'flex' }}>
+                        <Button>
+                            <Icon type="edit" />
+                            edit
+                        </Button>
+                        <Button>
+                            <Icon type="check" />
+                            check
+                        </Button>
+                    </div>
+                </div>
+            </div>
+        );
+    },
+    {
+        info: {
+            inline: true,
+            TableComponent: () => propsTable({ propDefinitions }),
+            // propTablesExclude: [],
+            text: `
+            代码示例：
+            ~~~js
+            import { useContextView } from 'mo/components/contextview';
+
+            const contextView = useContextView();
+
+            const mouseMove = (event: React.MouseEvent): void => {
+                contextView.show({
+                    x: event.clientX,
+                    y: event.clientY,
+                }, () => {
+                    return (
+                        <h1>Hello World</h1>
+                    );
+                });
+            };
+
+            return (
+                <div>
+                    <div id="topLeft"
+                        onMouseMove={mouseMove}
+                        style={
+                            {
+                                position: 'absolute',
+                                width: 200,
+                                height: 200,
+                                top: 0,
+                                left: 0,
+                                right: 0,
+                                bottom: 0,
+                                background: '#dddddd',
+                            }
+                        }>
+                            Hover me!
+                    </div>
+                </div>
+            );
+            ～～
+        `,
+        },
+    }
+);