Create Debian.gitignore

[movatica]

New

• [X] Template - New .gitignore template
• [ ] Composition - Template made from smaller templates
• [ ] Inheritance - Template similar to an existing template
• [ ] Patch - Template extending functionality of existing template

Details

Add .gitignore template for Debian packaging build files created by debhelper utilities.

See also: https://wiki.debian.org/HowToPackageForDebian

I posted a similar pull request to github/gitignore, but they do not respond.

@quicoa contributed improvements, thank you for that.