Add Bearer authentication to api.yaml on proper endpoints

[mslowiak]

Some endpoints should be protected, but actually our api.yaml file have not this information.

Link to OpenApi documentation: https://swagger.io/docs/specification/authentication/bearer-authentication/

The class that holds secured & public endpoints of application: https://github.com/jmprathab/MyHome/blob/master/service/src/main/java/com/myhome/security/WebSecurity.java

Things need to be done:

• Read OpenApi docs how to use Bearer auth in specs
• Check WebSecurity class for endpoints that should be protected
• Apply security schema to endpoints that are secured by JWT