Begin migrating to Android Studio embedded SDK

Started adding support for APK Manager to use sdk tools (adb, aapt, draw9patch, monitor, zipalign, etc.) embedded inside the Android Studio.app if found on the user's system.
Change Android Studio support to use /etc/paths.d

Change the way Android Studio support is handled by creating a paths file and copying it to /etc/paths.d. This ensures any shell can access the tools, and fixes new shells spawned by APK Manager (e.g. monitor, draw9patch, etc.) not being able to find the required binaries.
Begin cleanup and re-working of Install script