Restore 2.x directory structure of package

Restore 2.x directory structure of package

Example:
  $HOME/apps_rw/{PKGID}/bin/{APPID_1}, {APPID_2} (symlink)
  $HOME/apps_rw/{PKGID}/data/
  $HOME/apps_rw/{PKGID}/shared/data/
  $HOME/apps_rw/{PKGID}/shared/res/
  $HOME/apps_rw/{PKGID}/shared/trusted/
  $HOME/apps_rw/{PKGID}/res/wgt/... (all wgt contents)

Installation/Update/Deinstallation/RDS modes should work.

BUT NOTE THAT:
 - runtime requires to known where to look for widget files after
   this change,
 - security-manager should not require app_id,
 - security-manager must not block installation when path without
   app_id is passed,
 - C API must be aware of new paths.

Change-Id: Idc3609ae355389a9df696c85315e5bcd71a9a3ef