TRUNK-6243: Add a new runtime property to determine if app is running in development or production mode

[IamMujuziMoses]

Issue I worked on

see https://issues.openmrs.org/browse/TRUNK-6243

Checklist: I completed these to help reviewers :)

• My IDE is configured to follow the code style of this project.

  No? Unsure? -> configure your IDE, format the code and add the changes with git add . && git commit --amend

• I have added tests to cover my changes. (If you refactored
  existing code that was well tested you do not have to add tests)

  No? -> write tests and add them to this commit git add . && git commit --amend

• I ran mvn clean package right before creating this pull request and
  added all formatting changes to my commit.

  No? -> execute above command

• All new and existing tests passed.

  No? -> figure out why and add the fix to your commit. It is your responsibility to make sure your code works.

• My pull request is based on the latest changes of the master branch.

  No? Unsure? -> execute command git pull --rebase upstream master

[IamMujuziMoses]

@dkayiwa @ibacher could you please review this PR, your feedback will be appreciated.

[kgup27]

Some improvements can be made like pattern matching and refactor for clarity

[agrpranjal07]

• Have taken default mode to be "development"
• For handling the Stack Trace issue a new method is added formattedStrackTrace with helper methods to show original Stack Trace in dev environment and formatted Stack Trace in production environmet
• Tests are added to check if changes are working in dev and production env or not.