miscellanous functions for log entry work.

CRUD Create Function.

Create function which include receipent, sender and message.

CRUD Delete functions - delete one by id, delete before date, delete by application before date.

After the message is viewed, it will be acknowledged and removed from the database.

CRUD Delete Function.

CRUD Retrieve Functions - one, between dates for application, by application, and all records.

Retrieve Functions for getting a user or users based on need.

CRUD Update.

CRUD Update Function.