* WIP
* WIP
* WIP
* fixed Bill comments on PR - https://github.com/OHIF/Viewers/pull/2979
* added series number to series filter and removed extra console.log
* changed the filter of seriesFilterKeys to studyFilterKeys
* changed the seriesInstaceUID to SeriesInstanceUID to make coerence with StudyInstanceUID
* reverted change on extension retrieveMetadataLoaderAsync and make the right change on Mode.tsx
* fixed PR comments and add small information about the filters
Co-authored-by: Thomas Forster <thomasforster@MacBookPro-Thomas.local>