Add ORCA 6.0.0 with XTB support. Also add XTB 6.7.1 foss2023b
Created by: Neves-P
Also includes XTB 6.7.1 with foss2023b. Fokke was right the first time using foss2023b and not gfbf, because the FOSS toolchain is needed to load XTB with ORCA.
Created by: Neves-P
Also includes XTB 6.7.1 with foss2023b. Fokke was right the first time using foss2023b and not gfbf, because the FOSS toolchain is needed to load XTB with ORCA.