feat(CSAF2.1): #197 mandatory test 6.1.7 - move test in README to the supported tests

Author: rainer-exxcellent

README.md

@@ -311,7 +311,6 @@ The following tests are not yet implemented and therefore missing:
 
 **Mandatory Tests**
 
-- Mandatory Test 6.1.7
 - Mandatory Test 6.1.10
 - Mandatory Test 6.1.14
 - Mandatory Test 6.1.16
@@ -395,6 +394,7 @@ export const mandatoryTest_6_1_3: DocumentTest
 export const mandatoryTest_6_1_4: DocumentTest
 export const mandatoryTest_6_1_5: DocumentTest
 export const mandatoryTest_6_1_6: DocumentTest
+export const mandatoryTest_6_1_7: DocumentTest
 export const mandatoryTest_6_1_8: DocumentTest
 export const mandatoryTest_6_1_9: DocumentTest
 export const mandatoryTest_6_1_11: DocumentTest