Adding older submissions on LeetCode automatically

[singh-kashish]

I installed this extension , and I submitted a solution to the problem , but only that question was pushed to the git repo, I don't think all the problems which were pushed earlier on leetcode will pushed to leetcode untill I go ahead and resubmit every one of them.
I hope you do something to automate that process such that all the problems which were solved earlier before I installed this extension could be added as well .

[QasimWani]

see #77