Add literary awards entity 15

[hpa16]

Summary of change

Added awards entity with awardName as an enum. Added a query to get all books that have won a certain award Added mutations to add or delete awards DB migration: Added 2 books through INSERT_BOOKS.sql to showcase the books-awards link

Related issue

Closes #15

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[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
28 Code Smells

51.1% Coverage
0.0% Duplication

[knjk04]

@hpa16 Could you also please resolve the merge conflicts? Thanks!

[hpa16]

@knjk04 I'm having some problems merging it into this branch. Let me close this and create a new PR with the latest code.

[hpa16]

Opened a new PR: #142