Java, simplifies security

[spacether]

Java, simplifies security

• apiConfiguration now stores securitySchemeInfo information
• securityInfo stores indices that users set for specific locations where security is defined
• that index is used to get a SecurityRequirementObject
• apiConfiiguration.getSecurityScheme uses the SecurityScheme class in the SecurityRequirementObject to get and use the SecurityScheme

Future Work

• simplify serverInfo + add operation code sample
• add docs for ApiConfiguration

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• Run the following to build the project and update samples:

  mvn clean package 
  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh
  

  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
  These must match the expectations made by your contribution.
  You may regenerate an individual generator by passing the relevant config(s) as an argument to the script, for example ./bin/generate-samples.sh bin/generate_samples_configs/python*
  For Windows users, please run the script in Git BASH.