Handle UDPipe comments and ignore non-interpretable comments

TODO:
* handle XPosTags (column 5)?
* convert more metadata (udpipe_model_licence, ...)

Resolves #1, #2

Change-Id: Ic29125bdcdf7ba9bb8d84c94757a72cea6bcf500
diff --git a/Changes b/Changes
index 78c0829..c376227 100644
--- a/Changes
+++ b/Changes
@@ -4,6 +4,9 @@
         - korapxml2conllu: use morpho.xml if present when run on base zips
         - korapxml2conllu: new option -c <columns>
         - conllu2korapxml: ignore _-lemmas
+        - conllu2korapxml: handle UDPipe comments
+        - conllu2korapxml: ignore non-interpretable comments
+
 
 0.4.1 2021-07-31
         - korapxml2conllu: fix patterns not extracted for last texts in archive