retrieve Config only in ResBagValue and misc tweaks

We actually don't need to pass Config explicitly to all ResValue subtypes.
It's only needed by 3 subtypes of ResBagValue, so we get the Config
via ResBagValue's mParent.getPackage().getConfig().

Encapsulate ResConfigFlags.

Encapsulate ResID and make it a numeric and comparable type.

Sort resource specs by resource ID in generatePublicXml.

Duo is redundant, replace with Apache Common's Pair.

ResIdValue is redundant, it's never actually instantiated.

Tweak equals and hashCode overrides to standard formats.

Misc style and variable name tweaks.

Author: IgorEisberg

brut.apktool/apktool-lib/src/main/java/brut/androlib/apk/ApkInfo.java

@@ -109,13 +109,10 @@ public boolean hasResources() throws AndrolibException {
 
     public String checkTargetSdkVersionBounds() {
         int target = mapSdkShorthandToVersion(getTargetSdkVersion());
+        int min = getMinSdkVersion() != null ? mapSdkShorthandToVersion(getMinSdkVersion()) : 0;
+        int max = getMaxSdkVersion() != null ? mapSdkShorthandToVersion(getMaxSdkVersion()) : target;
 
-        int min = (getMinSdkVersion() != null) ? mapSdkShorthandToVersion(getMinSdkVersion()) : 0;
-        int max = (getMaxSdkVersion() != null) ? mapSdkShorthandToVersion(getMaxSdkVersion()) : target;
-
-        target = Math.min(max, target);
-        target = Math.max(min, target);
-        return Integer.toString(target);
+        return Integer.toString(Math.max(min, Math.min(max, target)));
     }
 
     public String getMinSdkVersion() {

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/Framework.java

@@ -63,7 +63,7 @@ public void install(File frameFile, String tag) throws AndrolibException {
             publicizeResources(data, arsc.getFlagsOffsets());
 
             File outFile = new File(getDirectory(),
-                arsc.getOnePackage().getId() + (tag == null ? "" : '-' + tag) + ".apk");
+                arsc.getOnePackage().getId() + (tag != null ? "-" + tag : "") + ".apk");
 
             try (ZipOutputStream out = new ZipOutputStream(Files.newOutputStream(outFile.toPath()))) {
                 out.setMethod(ZipOutputStream.STORED);

brut.apktool/apktool-lib/src/main/java/brut/androlib/res/ResourcesDecoder.java

@@ -239,11 +239,14 @@ private void generatePublicXml(ResPackage pkg, Directory resDir, XmlSerializer s
             serial.startDocument(null, null);
             serial.startTag(null, "resources");
 
-            for (ResResSpec spec : pkg.listResSpecs()) {
+            List<ResResSpec> specs = pkg.listResSpecs();
+            specs.sort(Comparator.comparing(ResResSpec::getId));
+
+            for (ResResSpec spec : specs) {
                 serial.startTag(null, "public");
                 serial.attribute(null, "type", spec.getType().getName());
                 serial.attribute(null, "name", spec.getName());
-                serial.attribute(null, "id", String.format("0x%08x", spec.getId().id));
+                serial.attribute(null, "id", spec.getId().toString());
                 serial.endTag(null, "public");
             }