updated .gitignore to ignore all build files in subprojects
updated .gitignore to ignore all build files in subprojects

advantageous/qbit,jarrad/qbit,advantageous/qbit,RichardHightower/qbit,advantageous/qbit,RichardHightower/qbit,bsa01/qbit,advantageous/boon,MammatusTech/qbit,bsa01/qbit,jarrad/qbit,MammatusTech/qbit,RichardHightower/qbit,MammatusTech/qbit,jarrad/qbit,advantageous/qbit,bsa01/qbit