Unifying TEST_RANGE & TEST_CASE params

[AJIOB]

Adding possibility for passing params to TEST_RANGE without any brackets, that will operate as usual TEST_CASE params.

It will be helpful for implementing param tests with partial params as ranges, partial params as usual values.

For example:

TEST_RANGE("example string value", [20, 40, 4])
void test_unifiedArgs(const char* s, int i)
{
  // test logic
}

expected to be equal to usual TEST_CASE cases:

TEST_CASE("example string value", 20)
TEST_CASE("example string value", 24)
TEST_CASE("example string value", 28)
TEST_CASE("example string value", 32)
TEST_CASE("example string value", 36)
TEST_CASE("example string value", 40)
void test_unifiedArgs(const char* s, int i)
{
  // test logic
}

[AJIOB]

@mvandervoord Mark, are you interested in that feature?