Implement changes for API authentication and Swagger UI (#541)

* initial token-based-api login handler

* add token schema and validation

* initial import of pyro3d api code

* basic Swagger spec support

* Merge in working copy of API/Device.pm

* Fix some error handling for API/Device.pm

* Break out utility functions into separate file, to allow other api portions to use

* Add NodeIP support.

* Add nodeip plugin to config

* remove double define of "plugin:" (#448)

disclaimer: i did not test this is any way, came across it when looking for something else.

* only AuthZ header for api use, and alway regen key on login

* use RFC7235

* workaround for Swagger plugin weird response body

* do not autodiscover swagger routes

* code formatting only

* move api util to utils area

* initial full swagger spec for nodeip search

* add api user role and fix api auth failure response

* update version of swagger-ui to 3.20.3

* add more openapi defs

* fixes to SQL and api spec

* clean up subs

* improvements to login/logout for API

* make api logout work

* add openapi tags to group operations

* allow api params to be generated from DBIC schema spec

* remove API calls for nodes and devices

* remove some poor assumptions about api calls

* tidy up

* remove DDP

* make login and logout similar

* example of api call being handled by ajax call

* make the branch authonly

share/schema_versions/App-Netdisco-DB-54-55-PostgreSQL.sql

@@ -0,0 +1,7 @@
+BEGIN;
+
+ALTER TABLE users ADD COLUMN "token" text;
+
+ALTER TABLE users ADD COLUMN "token_from" integer;
+
+COMMIT;