Bump all the SNAPSHOT versions to the next major release

DEVSIX-5652

Author: ars18wrw

pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>com.itextpdf</groupId>
     <artifactId>root</artifactId>
-    <version>7.1.17-SNAPSHOT</version>
+    <version>7.2.0-SNAPSHOT</version>
     <relativePath />
   </parent>