cmoon::test::test_result::test_result

`test_result() noexcept(noexcept(allocator_type()));`	`(1)`
`test_result(const Allocator& alloc);`	`(2)`
`test_result(const test_result& other);`	`(3)`
`test_result(test_result&& other) noexcept;`	`(4)`

1) Constructs an empty test result with no errors and no failures.

2) Constructs an empty test result with the given allocator.

3) Copy constructor.

4) Move constructor.

other

another test result object to copy/move

2) May throw std::bad_alloc