CAT-188 catalog fixes search templates

CAT-188 catalog fixes search templates

- Added template name input, save button, and delete button
- Adjusted getSearchStash() to parse JSON
- Added templateActionSave function to call create_template using browser specific variables
- Added templateActionDelete function to mirror desktop functionality
- Added functions to save to localStorage in place of file storage

Signed-off-by: Katlyn Beck <kbeck@catalyte.io>
 Changes to be committed:
	modified:   KCLS/openils/var/templates_kcls/opac/parts/advanced/search.tt2
	modified:   Open-ILS/web/js/ui/kcls/conify/global/config/search_templates.js