Added Controller & Templates for Images Table

Fixes

Partially addresses #87 (closed) no by @dakshp07

Description Added the standard controllers, templates for the Images Table.

Table (Updated 11 August) images.sql

Testing

1. Import the images.sql given in this PR description.
2. Spin up the framework. Sign in with the admin credentials.
3. Visit http://localhost:2354/images. This page is the index of the images table.
4. Visit http://localhost:2354/images/31 to view the images related to one specific artifact. Make sure that the images are displaying properly.
5. Visit http://localhost:2354/images/42 to check if the SVGs are displayed properly.
6. Visit http://localhost:2354/images/27 to check if the PDF link displayed works properly or not.