Missing lower CIPOS and CIEND from CNVkit

[khurrammaqbool]

SVDB is wrongly parsing the CIPOS and CIEND from CNVkit VCF output leading to missing lower bounds for CIPOS and CIEND. The example is given below:

CNVkit:
1       10500   .       N       <DEL>   .       .       IMPRECISE;SVTYPE=DEL;END=121484934;SVLEN=-121474434;FOLD_CHANGE=1.0641951251709667;FOLD_CHANGE_LOG=0.0897627;PROBES=1327;CIPOS=(0,166417);CIEND=(160417,194588) GT:GQ   0/1:1327

SVDB:
1       10500   .       N       <DEL>   .       .       IMPRECISE;SVTYPE=DEL;END=121484934;SVLEN=-121474434;FOLD_CHANGE=1.0642;FOLD_CHANGE_LOG=0.0897627;PROBES=1327;CIPOS=.,166417;CIEND=.,194588;set=cnvkit;FOUNDBY=1;cnvkit_CHROM=.|1;cnvkit_POS=.|10500;cnvkit_QUAL=.|.;cnvkit_FILTERS=.|.;cnvkit_SAMPLE=.|TUMOR|GT:0/1|GQ:1327;cnvkit_INFO=.|..(trimmed ......)

```