Add support for mapping vulnerability severities to jira priorities.
Priorities is an optional field so for example, it is possible to specify Priorities in globalConfig but not repoConfig (and only specify the ProjectKey and IssueType in repoConfig).
This allows for example, priorities to be set globally but still have each repo assigned to different Jira Projects.
Checklist
[x] I have added one of the patch, minor, major or no-release labels
[ ] I have linked an issue from this repository using the Development option
[x] I have performed a self-review of my own code
[x] I have checked for redundant or commented out code
[x] I have commented my code where I can't make it self-documenting
[x] I have made corresponding changes to the documentation
Description
Add support for mapping vulnerability severities to jira priorities. Priorities is an optional field so for example, it is possible to specify Priorities in globalConfig but not repoConfig (and only specify the ProjectKey and IssueType in repoConfig).
This allows for example, priorities to be set globally but still have each repo assigned to different Jira Projects.
Checklist
patch,minor,majororno-releaselabels