Makes HALIDE_HOME generic
Makes HALIDE_HOME generic

robstewart57/small-image-processing-dsl-implementations,robstewart57/END-dsl-implementations,robstewart57/small-image-processing-dsl-implementations,robstewart57/END-dsl-implementations,robstewart57/small-image-processing-dsl-implementations,robstewart57/END-dsl-implementations