Added buildr scripts to build the project
Added buildr scripts to build the project

jianglili007/pretty-printer,jianglili007/pretty-printer,goneall/SPDX-Tools,sschuberth/spdx-tools,yevster/tools,pezra/pretty-printer,yevster/tools,sschuberth/spdx-tools,rtgdk/tools,sschuberth/spdx-tools,goneall/SPDX-Tools,jianglili007/pretty-printer,yevster/tools,rtgdk/tools,jianglili007/pretty-printer,rtgdk/tools,pezra/pretty-printer,sschuberth/spdx-tools,jianglili007/pretty-printer,sschuberth/spdx-tools,romeara/spdx-tools,goneall/SPDX-Tools,romeara/spdx-tools,romeara/spdx-tools,yevster/tools,pezra/pretty-printer,yevster/tools