Add tests to check entity can be embedded using view mode and ID
Add tests to check embed using UUID and invalid ID
Remove debug print statement, fix docblock
Add tests to ensure thta UUID is preferred, Fix titles
Add tests to check embed using data plugins
Remove un-necessary custom class
Merge remote-tracking branch 'upstream/8.x-1.x' into simpletests
Add tests to ensure that display plugin is preferred over view mode
Rename filter format to avoid confusion
Add @see for filter class
Use strip_tags() instead of rewriting placeholder
Merge pull request #55 from cs-shadow/simpletests

Simpletests to ensure filter is working properly.