refactor: move converter from hrp internal to pkg

hrp/pkg/convert/testcase.tmpl

@@ -0,0 +1,38 @@
+# NOTE: Generated By HttpRunner v{{ version }}
+# FROM: {{ testcase_path }}
+
+{% if imports_list and diff_levels > 0 %}
+import sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__){% for _ in range(diff_levels) %}.parent{% endfor %}))
+{% endif %}
+
+{% if parameters %}
+import pytest
+from httprunner import Parameters
+{% endif %}
+
+from httprunner import HttpRunner, Config, Step, RunRequest, RunTestCase
+{% for import_str in imports_list %}
+{{ import_str }}
+{% endfor %}
+
+class {{ class_name }}(HttpRunner):
+
+	{% if parameters %}
+	@pytest.mark.parametrize("param", Parameters({{parameters}}))
+	def test_start(self, param):
+		super().test_start(param)
+	{% endif %}
+
+	config = {{ config_chain_style }}
+
+	teststeps = [
+		{% for step_chain_style in teststeps_chain_style %}
+			{{ step_chain_style }},
+		{% endfor %}
+	]
+
+
+if __name__ == "__main__":
+	{{ class_name }}().test_start()