ApiGatewayHandler RuntimeExceptions update

ApiGatewayHandler does not show to the REST client the messages of the thrown RuntimeExceptions so that Internal information will not be revealed to the REST client

Add failure action when converting Try to Optional

Add failure action when converting Try to Optional

Add toOptional in Try

Add toOptional in Try

foreach in Try, better logging

Changes:

1. Assertion that class visible properties are not empty or null
2. Fix logging
3. Better logging strings

StrginUtils check if string is empty

Method for checking if a string is null, empty, or blank

Add singleton collector

Adds singleton collector for situations where one-and-only one result is expected, removing the necessity for filter/matchAny in streams.

processInput with ApiGateway message can be overriden

processInput with ApiGateway message can be overriden

DoiValidator and DoiConverter

Merge pull request #45 from BIBSYSDEV/NP-831-DoiValidator-moved-to-nv…

…a-commons

feat: DoiValidator

Update dependencies

Merge pull request #44 from BIBSYSDEV/update-dependencies

fix: update dependencies

Log4j2 logging

Log4j2 logging