Update .gitignore to prep for merging vorth-master
Update .gitignore to prep for merging vorth-master

* Set up vzome-core and vzome-desktop to ignore the same files.
* Add bin/, repos/ and temp/ folders.
* Move .settings and target from the "// files" section to the "//
folders" section
* Add Gradle generated folders.

david-hall/vzome-core,david-hall/vzome-core,vorth/vzome-core,vorth/vzome-core