:recycle: adding endpoints for technique sort-bys

plugins/cia-endpoints/cia-end-points.php

     
     $episode_sorts = ['by_episode'];
     $by_episode_types = [
-        'artist', 'guide', 'short'
+        'artist', 'guide', 'short',
+        'technique'
     ];
     _make_sorts($by_episode_types, $episode_sorts);
     
     $material_sorts = ['by_material'];
     $by_material_types = [
         'artist', 'guide', 'short',
-        'object', 'publication',
+        'object', 'publication', 'technique'
     ];
     _make_sorts($by_material_types, $material_sorts);