Move most options passed in to ComicVineTalker to ComicTalker
Give ComicCacher and ComicTalker a version argument to remove all
references to comictaggerlib
Update default arguments to reflect what is required to use these classes
Add tests for IssueIdentifier
Change tags to a set from a string
Add copy and replace convenience functions on GenericMetadata
Update deprecated resampling code for Pillow
Change comicvine test data to be the same as the test comic
Cleanup tests