Use the CoNLL 17 word vectors for Turkish for the Ottoman Turkish dat…

…aset as well

Using conll17 Turkish vectors helps somewhat with POS

without:
  UPOS    XPOS  UFeats AllTags
 75.66   81.22   69.05   61.90

with:
  UPOS    XPOS  UFeats AllTags
 81.48   84.92   75.13   67.20

stanza/resources/default_packages.py

@@ -180,6 +180,7 @@
     "nds":     "fasttext157",
     "nl":      "conll17",
     "nn":      "conll17",
+    "ota":     "conll17",
     "pl":      "conll17",
     "pt":      "conll17",
     "ro":      "conll17",