Python script for generating build files for platform and modules, which uses the...

Python script for generating build files for platform and modules, which uses the enhanced XmlRoutines.py written by Bruce.

The functionalities include:
- parse all packages(.spd) and modules(.msa)
- parse active platform(.fpd). You must set active platform in target.txt otherwise nothing will be parsed.
- parse tools_def.txt and target.txt
- generate Ant build files for active platform and its modules. The generated build file is re-designed and can be called separately once generated.
- multi-thread build

The functionalities which haven't been implemented include:
- AutoGen. No AutoGen.h and AutoGen.c will be generated. If you want run the build file, you have to run the "build" command in advance to generate the AutoGen.h/.c files and remove the any other intermediate files.
- generate FFS and FV files. Only compiling will be done by the generated build file.

Usage:
- type "python ${WORKSPACE}/Tools/Python/buildgen/BuildFile.py" in shell to generate build file
- goto "${WORKSPACE}/Build/${platform}/${target}_${toolchaintag}/", type "ant" to run the build file

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2278 6f19259b-4bc3-4df7-8a09-765794883524