BUG24955338: Fix Schema.get_tables() and Schema.get_collections() value error

The Schema.get_tables() and Schema.get_collections() raises a ValueError,
using MySQL 5.7.14.

This patch fixes this issue by adding the correct column name for recent
MySQL versions and maintaining the support for the old ones.

The current tests already detects this issue.

Author: nmariz

lib/mysqlx/crud.py

@@ -142,7 +142,10 @@ def get_collections(self):
         for row in rows:
             if row.get_string("type") != "COLLECTION":
                 continue
-            collection = Collection(self, row.get_string("name"))
+            try:
+                collection = Collection(self, row.get_string("TABLE_NAME"))
+            except ValueError:
+                collection = Collection(self, row.get_string("name"))
             collections.append(collection)
         return collections
 
@@ -167,7 +170,10 @@ def get_tables(self):
         object_types = ("TABLE", "VIEW",)
         for row in rows:
             if row.get_string("type") in object_types:
-                table = Table(self, row.get_string("name"))
+                try:
+                    table = Table(self, row.get_string("TABLE_NAME"))
+                except ValueError:
+                    table = Table(self, row.get_string("name"))
                 tables.append(table)
         return tables