Removed the edited descr_soundbank_unit_collide.txt.

Enhanced Sounds still had some things missing and all of it I have decided to add in this update, enjoy!

-In vanilla, when you click on an alert, the sound effects will keep on playing even after you have closed the alerts menu, and even when you have ended the turn. I found this very distracting so I have shortened all of these sound effects down to 3-4 seconds. That should make it far more pleasant to open alerts.
-Increased the volume of bow firing sound effects. These used to be very muffled.
-Fixed the diplomacy sound effects. In vanilla they are very loud and the sound effects could play for the wrong cultures due to some mistakes in the soundbank.
-In vanilla, the Roman merchant sound effects have long pauses in the beginning. I have gotten rid of these pauses by tweaking the sound effects.
-When a spy or assassin carries out a mission, like if a spy spies onto a settlement, the 'spying' sound effect will once again play like it does in RTW. This doesn't happen in vanilla because these actions are missing in the soundbank.
-Added new sound effects for group fighting from EB2. In vanilla these are called 'melee_roman_fight' inside SFX > Group > Melee.
-The generic sound effects for soldier grunts and screams from vanilla (AKA non-localised) will once again play.
-Added some new sound effects for soldier grunts and screams.
-Added death sounds from Medieval 2.
-Added suggestion from _______TR_____, the battle end result music (winning/losing) like Invicta are now 25% louder. I do agree that these weren't as loud as they should be.
-Fade in/out of the construction and recruitment panel sound effects is now 2.5 seconds from 5 seconds.

Updated the descr_soundbank_unit_collide.txt soundbank file.

Added sounds to the battle map buttons.