feat: 添加FPS插件，显示帧率

src/plugins/fps/export_show.ts

@@ -0,0 +1,24 @@
+import { Plugin, PluginGroup } from '@/class/PluginCenter'
+import showFps from './showFps'
+import { SpeedometerOutline } from '@vicons/ionicons5'
+import { PluginExportType } from '@/types/type'
+import { shallowRef } from 'vue'
+import { fpsElement } from './shared'
+
+const pluginConfig: Plugin = {
+   name: '显示FPS',
+   icon: shallowRef(SpeedometerOutline),
+   filter: () => {
+      return fpsElement.value === null
+   },
+   disable: false,
+   group: [PluginGroup.mainMenu],
+   func: showFps,
+   priority: 0
+}
+
+export default pluginConfig
+
+export const type = PluginExportType.default
+
+export const key = 'showFps'