hassbian-config: New run-suite function

[ludeeus]

Description:

This PR has various changes:

• New functionality for existing functions.
• New function.
• Changed lowercase cmd options to uppercase
• Moved some default stuff out of script files.

New functionality for existing functions.

install-suite and upgrade-suite now work as checking functions.
If they think they can continue with the install/upgrade of if --force is supplied.
It will pass the instructions to the new run-suite function.

New function.

run-suite will handle:

• Installations.
• Upgrades.
• Writing control file based on return value.
• activating/deactivating debug.

Changed lowercase cmd options to uppercase

-f and -y are "changed" to -F and -Y, lowercase are kept for compability.

Moved some default stuff out of script files.

Every script file had suite-show-short-info and suite-show-copyright-info at the top of every install/upgrade function, this was unnecessary and has now been moved to the "tool" (hassbian-config).
The same with this line:
If you have issues with this script, please say something in the #devs_hassbian channel on Discord.
This will now only get printed if the script install/upgrade function returns with other than 0
This way we have somewhat cleaner files, and a single place to update if we need to.

Checklist:

• The code change is tested and works locally.
• Created/Updated documentation at /docs
  • Updated Contributing to match this PR.
  • Updated hassbian-config docs to match this PR.

[Landrash]

Looks good to me.
Some minor rewording of on comment can be rewritten but with that exception this can be merged.

[Landrash]

Wording in explanation is a bit of.
Change to
#This function do checks if we can/want to install.

[ludeeus]

I read this 5 times before seeing the change...