Start to support version read/write

api/inp_in.py

@@ -246,7 +246,7 @@ def parse_file(project: str, inp: str) -> None:
     print(f"Total (in second): {(end-start).seconds}(s)")
 
 
-def read_inp(project: str, inp: str) -> bool:
+def read_inp(project: str, inp: str, version: str = '3') -> bool:
     if is_project_open(project):
        close_project(project)
 
@@ -267,7 +267,7 @@ def read_inp(project: str, inp: str) -> bool:
     return True
 
 
-def import_inp(project: str, cs: ChangeSet) -> bool:
+def import_inp(project: str, cs: ChangeSet, version: str = '3') -> bool:
     if 'inp' not in cs.operations[0]:
         return False