feat: add Vyper language support, reassign .vy from Menhir (XAMPPRocky#1354)

Port of upstream XAMPPRocky#1354. Also adds Vyper to the README
language list for consistency (the upstream PR omitted that).

Co-Authored-By: Kainoa Kanter <kainoa@t1c.dev>

Author: Migelo

README.md

@@ -546,6 +546,7 @@ VisualBasic
 VisualStudioProject
 VisualStudioSolution
 Vue
+Vyper
 WebAssembly
 Wolfram
 Xaml

languages.json

@@ -1149,7 +1149,7 @@
         ["(*", "*)"],
         ["/*", "*/"]
       ],
-      "extensions": ["mll", "mly", "vy"]
+      "extensions": ["mll", "mly"]
     },
     "Meson": {
       "line_comment": ["#"],
@@ -2047,6 +2047,13 @@
       "important_syntax": ["<script", "<style", "<template"],
       "extensions": ["vue"]
     },
+    "Vyper": {
+      "name": "Vyper",
+      "line_comment": ["#"],
+      "doc_quotes": [["\\\"\\\"\\\"", "\\\"\\\"\\\""], ["'''", "'''"]],
+      "quotes": [["\\\"", "\\\""], ["'", "'"]],
+      "extensions": ["vy"]
+    },
     "WebAssembly": {
       "line_comment": [";;"],
       "quotes": [["\\\"", "\\\""], ["'", "'"]],

tests/data/vyper.vy

@@ -0,0 +1,49 @@
+# 49 lines 31 code 10 comments 8 blanks
+# ```vyper
+# @external
+# def main():
+#     # Comment
+#
+#     log Hello(message="Hello World!")
+# ```
+# pragma version ~=0.4.0
+
+event Hello:
+    message: String[32]
+
+owner: public(address)
+
+@deploy
+def __init__():
+    start: String[32] = "###\""
+    # comment
+    self.owner = msg.sender
+
+@internal
+def _call1():
+    return
+
+@internal
+def _call2():
+    return
+
+@external
+def foo(name: String[32]) -> String[64]:
+    this_ends: String[32] = "a \"test#."
+    self._call1()
+    self._call2()
+    this_does_not: String[64] = "# nested # phrase \" #"
+    return this_does_not
+
+@external
+def foobar() -> bool:
+    does_not_start: String[64] = "until here, test# test"  # a quote: "
+    also_doesnt_start: String[64] = "until here, test,# test"  # another quote: "
+    return True
+
+@external
+def foo_again() -> uint256:
+    a: uint256 = 4  # #
+    b: uint256 = 5
+    c: uint256 = 6  # #
+    return a + b + c