Produce how-to screencasts to demonstrate SCSt capabilities

[sabbyanandan]

As part of the continued efforts to improve the developer's getting-started experience, we would want to produce how-to screencasts, so folks can refer to it and see things in action.

• Let's use SCSt 3.0 as the baseline.
• Perhaps demonstrate the capabilities for Rabbit and Kafka

Development:

• How to get started with SCSt
• How to build a source, processor, and sink
• How to find the available binder choices
• How to find the binder properties
• How to handle exceptions proactively
• How to switch binder implementation and the associated properties if any

Troubleshooting:

• How to troubleshoot if something fails
• How to enable DEBUG flags for specific packages
• How to gain access to actuator endpoints
• How to verify if the SCSt overrides are taken into account
• How to remotely debug the application from an IDE

Deployment:

• How to deploy an SCSt application to cloud platforms (we have a step-by-step guide in microsite for cf, local, and k8s)
• How to automate the deployment of apps through CICD

SCDF:

• How to register and use the apps in SCDF
• How to debug deployment failures in SCDF
• How to monitor the apps in SCDF