Pagination (#369)

[huyuxin0429]

• Adds POST route for creating new assignments via API (Adds POST route for creating new assignments via API #338)

• Add API key and sample GET and POST

• Implement POST API route for creating assignments

• Add API key authentication handler

• Run rubocop on assignments_controller

• Reduce linter-flagged issues

• Add API Phase 1 documentation (Add API Phase 1 documentation #336)

• Add API Phase 1 documentation

• Api/sub sim (Add API for GET all submission similarities of an assignment #331)

• Added API for GET all submission similarities of an assignment

• Fix extra render when uploading invalid zip file (Fix extra render when uploading invalid zip file #342)

• Fix extra render when uploading invalid zip file

• Revert "Fix extra render when uploading invalid zip file (Fix extra render when uploading invalid zip file #342)" (Revert "Fix extra render when uploading invalid zip file" #344)

This reverts commit d6a720f.

• Fix extra render when uploading invalid zip file

• Add API route for GET Pair of flagged submission details (GET Pair of flagged submission details #341)

• Add tests and bug fixes for api/v1/submission_similarities index and show

• Add RSpec tests for POST /api/v1/courses/{course_id}/assignment/

• Update similarity percentage format it doc

• Remove unused files and routes

• Update/ Clarify API doc

• added pagination

• added to use the will_paginate gem

• Added such that limit has higher precedence over pagination

---

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[coveralls]

coverage: 4.43% (+0.2%) from 4.203%
when pulling fbf3a72 on feature/ssid_coursemology_integration
into 8bcd107 on master.