Add static go files for webcp embedding

@HouzuoGuo I forgot to include this in the last commit of the control panel. These are the compiled static files for distribution. These will get built into the tiedot executable. This is also incase someone wants to include the webcp in their program by importing the webcp package.

Anytime the control-panel is updated, these need to get re-built by running `rice embed-go` inside the webcp folder.