Gambas_gitignore

The new gitignore file for Gambas as requested. 
I have made the branch Gambas_gitignore since guidelines suggest so.
    I am providing you the info you requested. I have also added these info (without the web links), to the comments of the Gambas.gitignore file.
    In my opinion this file should be listed in master, since Gambas is a full-featured object language and development environment built on a BASIC interpreter). (from Gambas wiki ['What is Gambas'](http://gambaswiki.org/wiki/doc/whatisgambas?w&l=en) )
    The "language **and** developmen enviroment" part is the key here, to understand that the IDE is part of the Programing language.

File(s): core, core.\* ,vgcore ,vgcore.\*
Description: [Core files are generated by Linux when a process crashes](http://sourceforge.net/p/gambas/mailman/message/10637889/)

File(s): .\*.kdbg*
Description: [KDbg debuger](http://sourceforge.net/projects/kdbg/)

File(s): \*.prof 
Description: Gambas since version 3.2 IDE has integrated [profiler](http://en.wikipedia.org/wiki/Gambas) and it started to use Just-in-time compilation technology.

Directory: .gambas/\*
Description: Contains the project  [Forms](http://gambaswiki.org/wiki/comp/gb.form).