Exclude PSD file from JAR and reduce icon.png size

Author: mt1006

build.gradle

@@ -55,6 +55,7 @@ jar {
 	from("LICENSE") {
 		rename { "${it}_${project.base.archivesName.get()}"}
 	}
+	exclude "assets/time-loop/icon.psd"
 }
 
 // configure the maven publication
@@ -73,4 +74,4 @@ publishing {
 		// The repositories here will be used for publishing your artifact, not for
 		// retrieving dependencies.
 	}
-}
+}