refactor: Add support for plain SOQL query#33

Asafkbalink wants to merge 4 commits intologstash-plugins:mainlogstash-plugins/logstash-input-salesforce:mainfrom

Asafkbalink:refactor/remove-old-implementationAsafkbalink/logstash-input-salesforce:refactor/remove-old-implementationCopy head branch name to clipboard