Added path input to cucubberjson feature report

Added Fail message to Cucumber.json output

Changed Cucumber.json environment variable
from OUTPUT to OUTPUT_CUCUMBER_JSON

Problem:
- logical expressions fail in EXPECT() and ASSERT() because of
  operator precedence

Solution:
- wrap __VA_ARGS__ use in macros with an extra set of parens

Problem:
- GTest.h uses constructs from `std::` without including them; in later versions
  of GoogleTest they are not necessarily transitively included.

Solution:
- Add includes for:
  - `iomanip` (`std::left`, `std::setw`)
  - `iostream` (`std::cout`, `std::endl`)
  - `tuple` (`std::tie`)
  - `type_traits` (various e.g. `std::is_same`)