Drug discovery example

[james-whiteside]

What is the goal of this PR?

This PR adds the drug discovery example to the repo.

What are the changes implemented in this PR?

• Adds drug discovery example under drug-discovery directory.
• Updates the top-level readme.

[typedb-bot]

PR Review Checklist

Do not edit the content of this comment. The PR reviewer should simply update this comment by ticking each review item below, as they get completed.

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Trivial Change

• This change is trivial and does not require a code or architecture review.

Code

• Packages, classes, and methods have a single domain of responsibility.
• Packages, classes, and methods are grouped into cohesive and consistent domain model.
• The code is canonical and the minimum required to achieve the goal.
• Modules, libraries, and APIs are easy to use, robust (foolproof and not errorprone), and tested.
• Logic and naming has clear narrative that communicates the accurate intent and responsibility of each module (e.g. method, class, etc.).
• The code is algorithmically efficient and scalable for the whole application.

Architecture

• Any required refactoring is completed, and the architecture does not introduce technical debt incidentally.
• Any required build and release automations are updated and/or implemented.
• Any new components follows a consistent style with respect to the pre-existing codebase.
• The architecture intuitively reflects the application domain, and is easy to understand.
• The architecture has a well-defined hierarchy of encapsulated components.
• The architecture is extensible and scalable.

[SullivanDaly]

Like it a lot, anyway, ex2/3/4 are really close to each other (I understand that you need this to demonstrate the "chain" but maybe we can find a different way?).

Maybe the exercise 4 is also a bit too easy? (and maybe exercise 6 too?)

Except those remarks, still an great usecase!

[james-whiteside]

Like it a lot, anyway, ex2/3/4 are really close to each other (I understand that you need this to demonstrate the "chain" but maybe we can find a different way?).

Maybe the exercise 4 is also a bit too easy? (and maybe exercise 6 too?)

Except those remarks, still an great usecase!

Following discussion, updated Exercise 04.