Making the Classloader threadsafe

Performance issue when building strings

Directory Bug

The correct pattern to make a directory is: `if (!dir.mkdirs() && !dir.isDirectory()) { error }` mkdirs checks for exists so the exists check is redundant.

Improve performance by using StringBuilder instead of StringBuffer.

* show the certificate if the certificate file name is not standard
eg https://play.google.com/store/apps/details?id=com.kms.free

* add node

* add node

* add certificate panel

* add certifcate manager

* работа над проектом

* ресурсы

* включение возможности показа

* небольшие исправления

* start tests

* more tests

* signature test

* fingerprint test

* public key test

* удалено лишний код

* add scroll

Prevent adding duplicate ids for resource entries with different entry configs

Generates and saves public.xml in apktool style

Caution: This change can increase memory usage!
However overall decompilation must be faster