Ontoportal CLI test (#529)

## Changes
Ontoportal CLI test
- Update: Add testing off ontoportal JSON to CLI tests
- Update: run_convert() to support multiple output formats

tests/test_cli.py

@@ -52,6 +52,7 @@ def test_cli_single_input(self):
             elif test.inputformat == "tsv":
                 # These test only run on TSV inputs
                 self.run_convert(runner, test)
+                self.run_convert(runner, test, "ontoportal_json")
                 self.run_validate(runner, test)
                 self.run_parse(runner, test)
 
@@ -89,9 +90,8 @@ def run_successful(self, result: Result, obj: Any) -> None:
         if result.exit_code:
             raise RuntimeError(f"{obj} failed") from result.exception
 
-    def run_convert(self, runner: CliRunner, test_case: SSSOMTestCase) -> Result:
+    def run_convert(self, runner: CliRunner, test_case: SSSOMTestCase, fmt="owl") -> Result:
         """Run the convert test."""
-        fmt = "owl"
         params = [
             test_case.filepath,
             "--output",