Add Airbyte stream configuration job for .NET apps

[gunndabad]

Context

The current airbyte-stream-update job runs a rake task, which won't work for .NET apps. This adds the equivalent job that works with the applications using the .NET analytics library.

Changes proposed in this pull request

Add is_rails_application and is_dotnet_application and only deploy corresponding jobs if the respective variables are set.
Adds a dotnet_application_directory variable that can be set if the container doesn't have a working directory set (or if the container's working directory doesn't contain the deployment script). (I didn't use the working_dir option as that seems to be ignored if the docker image has a working directory set.)

Guidance to review

The .NET side has been successfully tested in the trs-airbyte branch, but a Ruby app should be tested with this change too.

Before merging

Merge #173 and #174 and incorporate those changes into this PR.

After merging

Update any applications referencing this module to set the new variables, where appropriate.

Checklist

• I have performed a self-review of my code, including formatting and typos
• I have cleaned the commit history
• I have added the Devops label
• I have attached the pull request to the trello card