✨ Add --no-color flag

[genevieveluyt]

Description

Adds --no-color flag which can be used to disable printing color codes in the output. Colored output is intended for stdout but displays poorly elsewhere.

For example, redirecting the default "pretty" output to a file:

�[36m
---------------- Results for ---------------

�[0m�[36m  apiVersion: v1
�[0m�[36m  kind: Namespace
�[0m�[36m  metadata:
�[0m�[36m    name: deployment-apps-v1
�[0m�[36m
--------------------------------------------

Type of change

• Bug fix 🐛
• New feature ✨
• This change requires a documentation update 📖
• Breaking changes ⚠️

How Has This Been Tested?

• Ran go run cmd/main.go all -f "internal/test/fixtures/all_resources/deployment-apps-v1.yml" > out.txt and compared it with go run cmd/main.go all --no-color -f "internal/test/fixtures/all_resources/deployment-apps-v1.yml" > out.txt

Checklist:

• I have 🎩 my changes (A 🎩 specifically includes pulling down changes, setting them up, and manually testing the changed features and potential side effects to make sure nothing is broken)
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The test coverage did not decrease
• I have signed the appropriate Contributor License Agreement

[genevieveluyt]

This is an unrelated change, just improves the formatting by separating them severity codes by newlines

[Owen-Cummings]

As a Canadian: Color vs Colour 👀 But otherwise

[genevieveluyt]

@Owen-Cummings it pains me to not use colour haha

[genevieveluyt]

The failing CLA check is due to a bug. Since there's no ETA to fix, we've got the ok to merge through the failing check (Shopify employees don't have to sign the CLA, they should always pass the check).