added a vignere cipher

let-me-be-frank/description.md

@@ -0,0 +1 @@
+I was talking to one of my friends but I couldn't quite understand what he was saying. I think it might be important so here it is: `Nwh whdjwh qm uepen, T tjb fsmt tixgi jsrsh sigm gs mpzp xwqf iahxpv iw fslkt. pehgpxf{qtextz_glacz_elt_neinrw_qsg_bums_dcp}`

let-me-be-frank/grader.py

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+def grade(autogen, key):
+    if key.find("better_thank_the_french_for_this_one") != -1:
+        return True, "Correct!"
+    return False, "Nope!"

let-me-be-frank/problem.yml

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+author: GenericNickname
+title: Let Me Be Frank
+hint: Why might the title matter?
+category: Cryptography
+autogen: false
+programming: false
+value: 75
+files: