Create DB function to get all checkpoint data of a partitioning :#189

[TebaleloS]

Implementing a DB function to return the checkpoints

• Define and implemented a db function to return the checkpoint.
• Added test cases to illustrate the usage of the function

Closes #189

[github-actions[bot]]

JaCoCo server module code coverage report - scala 2.13.11

Overall Project	76.61%	:green_apple:

There is no coverage information present for the Files changed