[c::b] add BattleAI to workspace

vcmi.workspace

@@ -19,5 +19,6 @@
 		<Project filename="AI/StupidAI/StupidAI.cbp">
 			<Depends filename="VCMI_lib.cbp" />
 		</Project>
+		<Project filename="AI/BattleAI/BattleAI.cbp" />
 	</Workspace>
 </CodeBlocks_workspace_file>