feat: transcoding and player datastores and configuration

ui/src/transcoding/TranscodingList.js

@@ -0,0 +1,16 @@
+import React from 'react'
+import { Datagrid, List, TextField } from 'react-admin'
+import { Title } from '../common'
+
+const TranscodingList = (props) => (
+  <List title={<Title subTitle={'Transcodings'} />} exporter={false} {...props}>
+    <Datagrid rowClick="edit">
+      <TextField source="name" />
+      <TextField source="targetFormat" />
+      <TextField source="defaultBitRate" />
+      <TextField source="command" />
+    </Datagrid>
+  </List>
+)
+
+export default TranscodingList