sw: extract UITest_sw_findSimilarity from UITest_sw_findReplace

I'm not exactly sure how, but in case
sw/qa/uitest/findReplace/findSimilarity.py and
sw/qa/uitest/findReplace/findReplace.py are in the same suite, then 3
tests from the later fail for me.

I don't see anything obviously problematic in either of these tests, so
just split them to separate suites, these are slow tests after all, so
more parallelism is good anyway.

(What may happen is that one of the dialogs remember its state in the
user profile, but then why this doesn't happen for everyone is unclear.)

Change-Id: If11f5b171972422fab5f79a047b1aabb1adee04d
Reviewed-on: https://gerrit.libreoffice.org/70296Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Jenkins

sw/Module_sw.mk

@@ -147,6 +147,7 @@ $(eval $(call gb_Module_add_uicheck_targets,sw,\
 	UITest_writer_tests5 \
 	UITest_table \
 	UITest_sw_findReplace \
+	UITest_sw_findSimilarity \
 	UITest_chapterNumbering \
 	UITest_librelogo \
 	UITest_options \

sw/UITest_sw_findSimilarity.mk

+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call 	gb_UITest_UITest,sw_findSimilarity))
+
+$(eval $(call gb_UITest_add_modules,sw_findSimilarity,$(SRCDIR)/sw/qa/uitest,\
+	findSimilarity/ \
+))
+
+$(eval $(call gb_UITest_set_defs,sw_findSimilarity, \
+    TDOC="$(SRCDIR)/sw/qa/uitest/writer_tests/data" \
+))