Reverted Martin's changes related to CppUTest includes
Added new switch to build.py script. Now we can also build CppUTest library using switch --cpputest
Added new switch to build.py script. Now we can also build CppUTest library using switch --cpputest
Modified exporters so they support extra macros from external libraries like CppUTest library
Added extra includes for CPPUTEST library - in CppUTest library structure we only include from include/CppUTest and we do not use other functionality
Aligned existing unit tests to new include structure. Now includes are in build/cpputest so no need to include like this: 'CppUTest/header_file.h'
Added new functionality to project.py switch -m where we can now separate using comma platforms. Now when you specify more than one platform, for each your peoject will be exported
Minor changes: Removed unused import and trailing spaces
Fixed issue with compilation related to other platforms. None object was iterable.
Merge pull request #683 from PrzemekWirkus/cpputest-export

Tools: Update exporters' capabilities to support CppUTest project exports