Resolve "course generator"

Closes #1

See merge request !10

Add CourseTasks::isCourseIDExists() to avoid duplicated course name; insertCourse now return collection object instead of array

Basic Version Complete; Insert Error, unfixed; using counter to generate id number; unsure about release_date, left unchanged

email setup - sample send email

Closes #1

See merge request !9

Resolve "v7 swagger"

Closes #6

See merge request !8

Resolve "v7 feature/unit test"

Closes #5

See merge request !7

improve code layout; add feature/unit test for all product non-crud functions (controller, action, task)

Resolve "v7 action and task from controller"

Closes #4

See merge request !6

v7 move whole structure into product CRUD controller, action, tasks file, and update the api route path

v7 merge test

Closes #3

See merge request !5

v7 product crud api route controller

Closes #2

See merge request !4