* allow base importer to receive custom field type
* 1password importer uses hidden field type
for custom fields marked as 'concealed'
* 1password 1pif importer specs
* remove 'focus' from specs
* change field type logic into simple one liner
* Add sequentialize to prevent parralel loading of cipher keys
Massively improves start up performance of extensions
* Add tests for sequentialize
* Fix sequentialize as it was caching calls for all instances together
* Add sequentialize to the functions that have internal caches
* Adding sequentialize to getOrgKeys makes big performance difference
* Update cipher.service.ts
* Update collection.service.ts
* Update folder.service.ts