command line parameter done
can add/get comments
basic function OK
support multy line comment
support -m to specify the comment message
delete useless comments
change path to get ready for setuptool
setuptool ready
add setup.py
delete useless import
When add a comment, backup .FileComment.json to .FileComment.json~.
check if the file is valid before open the editer
print error message when file name is not valid
move CFile to CommentDB.py