Restore GERP annotations

[alkc]

Description and reviewer info

This update restores the GERP conservation score from dbNSFP/VEP

Fixes #205

This update does not restore GERP to the rank models, saved for separate PR

Type of change

• Documentation
• Patch
• Minor change
• Major change

Checklist

• Self-review of my code
• Update the CHANGELOG
• Tag the latest commit (vX.Y.Z format)
• Log samples used for testing in the Verification_samples_log Excel sheet
• GERP_RS scores added in CSQ fields for SNVs/indels
• GERP score extracted into INFO-field by modify_scout_vcf.pl

Patch

• Stub run completes without errors or new warnings
• At least one other person has reviewed and approved my code (not required for trivial changes)
• Test-load one sample into scout

Test/review documentation

Review performed by

• Alexander
• Jakob
• Paul
• Ryan
• Viktor

(Add if missing)

Testing performed by

• Alexander
• Jakob
• Paul
• Ryan
• Viktor

[alkc]

Testing pending next week when current production samples have cleared

[alkc]

Confirmed w/ seracare bam-start that the annotation is added.