Support role_name and entity_alias in VaultTokenRequest

[edmundham]

Hi all,

From the vault documentation for creating token through API call, https://www.vaultproject.io/api-docs/auth/token#create-token they have role_name and entity_alias. However, current (2.3.2 version) VaultTokenRequest does not support these parameters. https://github.com/spring-projects/spring-vault/blob/2.3.2/spring-vault-core/src/main/java/org/springframework/vault/support/VaultTokenRequest.java

Can the team look into adding these?

Thanks in advance!

[mp911de]

Feel free to submit a pull request.