captcha 8.x-1.2

This release fixes many bugs and introduces a few new features. The biggest being answer error messages are configurable, and you can now migrate from D7 to D8/9 captcha settings.

All issues fixed since 8.x-1.1:

• Issue #2959577 by BryanDeNijs, paulocs, vakulrai: Make the incorrect answer error message configurable
• Rewrite the Controllers to Drupal 8+ Standards.
• Fix test deprecations
• Various Code cleanup before release.
• Issue #2036925 by japerry: Remove captcha sessions migration.
• Issue #3089263 by Darren Oh, joachim, neclimdul, voleger, agoradesign, acbramley, NickDickinsonWilde, benjifisher, akic: Captcha Session ID broken with cacheable captcha backends
• Issue #2836076 by Neslee Canil Pinto, ndf, dotist, smaz, alunyov, wundo, dmsmidt, PieterDC: Re-introduce $settings['disable_captcha'] in 8.x branch
• Issue #3170158 by keshav.k, amietpatial: Add loader when user click on New captcha link, Because it takes time to load the captcha
• Issue #2501699 by ddrozdik, sanjayk, naveenvalecha, m1r1k, rahulrasgon, rpayanm, nmatja, yogeshchaugule8: Fix Image CAPTCHA settings form
• Issue #3152792 by sjerdo: Solution is reset for form IDs containing a dash
• Issue #2036925 followup by japerry: Namespace the table module for compatability with migrate plus.
• Issue #2036925 by japerry: d7 to D8/9 Migration Path