* Allow access to private repos when using ADT
In case of using a private repository in ADT (aka ABAP in Eclipse), username and password are passed to the backend system. The ADT backend coding currently handles this via class ZCL_ABAPGIT_DEFAULT_AUTH_INFO. To avoid sending a password dialog in the backend system, class CL_ABAPGIT_PASSWORD_DIALOG needs to be adjusted to take over user/pw from ZCL_ABAPGIT_DEFAULT_AUTH_INFO in a generic way. I know this is not nice and it would be better to have ZCL_ABAPGIT_DEFAULT_AUTH_INFO in ZABAPGIT. Even the best solution would be to re-use ZCL_ABAPGIT_LOGIN_MANAGER instead, but I would recommend to refactor this in a new pull request later on...
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Add comment for temporary solution and link to PR#2635
