Create Dev Readme about actions and structures

DEV.README.md

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+# About contributing into the project and structure
+These are notes to myself what the project has currently and how to do verifications.
+
+## Pull Request
+
+Each pull request must be go though the automated CI checks, which are:
+- Static Code Analyisis (detekt, ktlint, lint)
+- JVM Tests (unit tests + Robolectric Tests)
+- Android Tests on Emulators
+
+This is to ensure the project is still working after every merge.
+
+## Verifications of Screenshot Pulling
+
+A Manual Action has been created to verify the ScreenshotRule with the Gradle script is able to pull screenshots from the Device.
+This can be run in Actions/Verify Screenshots can be created and pulled/Run Workflow
+
+This should be tested on newer Emulators time to time.
+
+## Libraries
+Libraries are util classes for Testing.
+This can be released into packages by simply creating a Release from the Project. That will trigger an Action which publishes to GitHub Packages.
+
+## Modifications to Tests
+
+Each modifications to tests should also modify the corresponding section if applicable.
+This to ensure whoever wants to learn, won't get stuck by inconsistency between the code and description.