feat(CSAF2.1): #287 add mandatory test 6.1.42 - Part of the PURL that differs is appended to the message.

Author: rainer-exxcellent

.idea/.gitignore

@@ -317,7 +317,6 @@ The following tests are not yet implemented and therefore missing:
 - Mandatory Test 6.1.26
 - Mandatory Test 6.1.27.13
 - Mandatory Test 6.1.27.18
-- Mandatory Test 6.1.27.19
 - Mandatory Test 6.1.44
 - Mandatory Test 6.1.45
 - Mandatory Test 6.1.46

.idea/misc.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>