digital: add missing ieee libs (#492918)

pkgs/by-name/di/digital/package.nix

@@ -68,6 +68,10 @@ maven.buildMavenPackage rec {
     classpath=$(find $mvnDeps/.m2 -name "*.jar" -printf ':%h/%f');
     install -Dm644 target/Digital.jar $out/share/java
 
+    # Install the lib folder containing 74xx series chips and other component libraries
+    # Digital.jar expects to find lib/ in the same directory as the jar file
+    cp -r src/main/dig/lib $out/share/java/
+
     makeWrapper ${jre}/bin/java $out/bin/${pname} \
       --add-flags "-classpath $out/share/java/${pname}-${version}.jar:''${classpath#:}" \
       --add-flags "-jar $out/share/java/Digital.jar"