Add bridgemoji cards to our private bridges

As we're seeing some users failing to copy and paste the complete bridge line in Tor powered apps (Orbot, TB, TBA), we could add the bridge emojis and some instructions to check that they copied the right bridge line in Tor Browser.

• RT templates
• CDR.Link text modules

Let's try to collect some feedback for this.

Related: tpo/anti-censorship/team#117 (closed)

cc: @championquizzer @nina