Update `application.properties` `variant-white-list-path` to `use-clinvar-whitelist`

[julesjacobsen]

Change exomiser.hg38.variant-white-list-path to exomiser.hg38.use-clinvar-whitelist.

e.g.

exomiser.hg38.variant-white-list-path=${exomiser.hg38.data-version}_hg38_clinvar_whitelist.tsv.gz
# to
exomiser.hg38.use-clinvar-whitelist=true

[julesjacobsen]

or just add the use-clinvar-whitelist property and allow users to add their own independently

exomiser.hg38.variant-white-list-path=path/to/users/variant_whitelist.tsv.gz
exomiser.hg38.use-clinvar-whitelist=true # will add the clinvar data to the whitelist (default true) 

[julesjacobsen]

Add in commit 1c42ed6