feat(box): Add command to allow switching to develop branch easily

[flying-sausages]

• feat(box): mechanism for keeping develop checkouts on develop
• feat(box): add switchbranch command to help get people on develop
• feat(readme): Added instruction on switching to develop

Description

Basically a wrapper around git commands ot fetch and check out

Fixes issues:

Instructions to switch to develop will be confusing...

Proposed Changes:

Add an easy command to switch branches

Change Categories

• New feature
• Breaking change
• Project structure

Checklist

• Docs have been made OR are not necessary
  • PR link: develop brnahc docs docs.swizzin.ltd#79
• Changes to panel have been made OR are not necessary
  • PR link:
• Code is formatted (See more)
• Code conforms to project structure (See more)
• Shellcheck isn't screaming (See more)
• Prints to terminal are handled (See more)
• I have commented my code, particularly in hard-to-understand areas
• I have functionally tested the changes being introduced

Test scenarios

Architectures

	amd64	armhf	arm64	Unspecified
Focal			Yup
Bionic
Buster
Stretch
Raspbian	⚫️		⚫️	⚫️

✅❎ Passed

🛠🛠 TODO

❌❌ Currently failing

[flying-sausages]

[flying-sausages]

closing until #693 is merged, then I'll revisit this