Better vote feedback with announcer sounds

[kai-li-wop]

Q3 Team Arena provides additional code to inform the player via announcer when a vote is in progress, passed or failed. This helps to focus the player's attention on the vote during a match in addition to the visual information and improves the user experience in World of Padman. This would require three new announcer sounds:

• "Vote now!" or "vote in progress!"
• "Vote passed!"
• "Vote failed!"

ToDo:

• Apply the Q3 TA code (see cg_main.c and cg_servercmds.c).
• Provide three new and suitable announcer sound samples --> Sounds: new announcer sound files #19