smart_trim 8.x-1.1

This is a long overdue release that addresses some of the issues found by the community. It also adds the composer.json file which allows the module to be accessed via composer. Thank you everyone for your patience and support.

Changes since 8.x-1.0
Issue #2851703 by sardara: Missing schema.yml
Issue #2842404 by pfrilling: Allow a zero length trim
Issue #2842783 by richard.c.allen2386: Smart Trim should support plain text and plain text long data types (or string and string_long)
Issue #2661632 by superbiche: Trim to word boundary when using character count
Issue #2782689 by yvesvanlaer, heddn, markie: How to translate a custom read more link?
Issue #2733381 by Stefdewa, Shreya Shetty: UTF-8 encoding needed to show all characters correctly
Issue #2746533: Add a wrapper around text to separate from read more
Adding composer.
Issue #2796379 by shruti1803: Missing hook_help
Issue #2773709 by seaarg: A fatal error occurred: The [entity type] entity cannot have a URI as it does not have an ID
Issue #2758557 by rajeshwari10: Remove @file tag docblock from all the .php files
Issue #2770075 by Nitesh Pawar: Replaced t() with $this->t()
Issue #2736839 by cbeier: Twig exception if Smart Trim is used on a field -> entity with no link
Issue #2644360 by alan-ps: more link class attribute name is wrong