Added Debian Support with .deb file and buildscript

[0xFOSSMan]

• PR Description

• Please check if the PR fulfills these requirements

• [no go code got changed] Cheatsheets are up-to-date (run go generate ./...)
• [yes] Code has been formatted (see here)
• [not needed] Tests have been added/updated (see here for the integration test guide)
• [not needed] Text is internationalised (see here)
• [not needed] If a new UserConfig entry was added, make sure it can be hot-reloaded (see here)
• [yes] Docs have been updated if necessary
• [fully tested and proofread] You've read through your own file changes for silly mistakes etc