Attempt fix for new lib reload/relocate tests on windows.

Try splitting them into their own class.

tests/python/bl_blendfile_liblink.py

@@ -370,7 +370,7 @@ class TestBlendLibAppendReuseID(TestBlendLibLinkHelper):
         assert(len(bpy.data.collections) == 0)  # Scene's master collection is not listed here
 
 
-class TestBlendLibLibraryReloadRelocate(TestBlendLibLinkHelper):
+class TestBlendLibLibraryReload(TestBlendLibLinkHelper):
 
     def __init__(self, args):
         self.args = args
@@ -399,6 +399,13 @@ class TestBlendLibLibraryReloadRelocate(TestBlendLibLinkHelper):
         print(reload_data)
         assert(orig_data == reload_data)
 
+
+
+class TestBlendLibLibraryRelocate(TestBlendLibLinkHelper):
+
+    def __init__(self, args):
+        self.args = args
+
     def test_link_relocate(self):
         output_dir = self.args.output_dir
         output_lib_path = self.init_lib_data_basic()
@@ -432,7 +439,8 @@ TESTS = (
     TestBlendLibLinkSaveLoadBasic,
     TestBlendLibAppendBasic,
     TestBlendLibAppendReuseID,
-    TestBlendLibLibraryReloadRelocate,
+    TestBlendLibLibraryReload,
+    TestBlendLibLibraryRelocate,
 )