Synchronize binary with modification of r1618 in buildtools project. The modification...

Synchronize binary with modification of r1618 in buildtools project. The modification is made for WorkspaceDatabase.py and affect the frozen binary of build.exe, GenFds.exe and TargetTools.exe
The modification is add additional checking for whether need renew the immediate file workspace database, the renew reason maybe:
The renew reason maybe:
1) If user force to renew;
2) If user do not force renew, and
   a) If the time of last modified python source is newer than database file;
   b) If the time of last modified frozen executable file is newer than database file, the executable file is build.exe in window and build in Linux/Unix/OSX

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8615 6f19259b-4bc3-4df7-8a09-765794883524