Add VCF 4.4 test files for SVCLAIM

[tcezard]

passed_CNV.vcf:

• tests INFO:CN can be float
• tests multiple symbolic alleles/SVLEN/SVCLAIM
• tests SVCLAIM DJ type
• Test Copy number as genotypes

failed_CNV_001.vcf:

• Test SVCLAIM Is not D, J or DJ

failed_CNV_002.vcf:

• Number of SVCLAIM

failed_CNV_003.vcf:

• SVCLAIM is missing for a DEL symbolic allele