update libxlsxio 0.2.22

.gitmodules

@@ -8,5 +8,5 @@
 	branch = R_2_2_7
 [submodule "library/libxlsxio"]
 	path = library/libxlsxio
-	url = https://github.com/brechtsanders/xlsxio.git
-	branch = 0.2.21
+	url = https://github.com/viest/xlsxio.git
+	branch = 0.2.22

library/libxlsxio

@@ -1 +1 @@
-Subproject commit b2b39b91c5005b4edc78ff8145226338aaea1c2c
+Subproject commit 55f6621b20808acd35cfa6c681dee794564cbce1