* Consistent license message for all the go files
* Fixing the last set of unconsistencies with the license headers
* Addressing PR review comments
* Fixing busy.go and busy_test.go license header
* MM-14030 Add initial CountFrames
* MM-14030 Add format and frame count to image metadata
* Fix tests and stop using image dimensions from OpenGraph
* Fix copyright header
* Move license to NOTICE.txt
* MM-13664 Added LinkMetadata types
* MM-13664 Use LinkMetadata when populating post metadata
* Fix unused import
* Fix index name on SQLite
* Finish adding unit tests
* Address feedback
* Increase max length of URL column to 2048 characters
* MM-11868/MM-12010/MM-12011/MM-12036 Include dimensions for opengraph and message attachment images in post metadata
* Remove duplicate check from getFirstLinkAndImages
* Add tests for getImagesInMessageAttachments
* Rename PostMetadata.FileInfos to PostMetadata.Files
* Rename Metadata.ImageDimensions to Metadata.Images
