Allow kore build to take compiler via KORE_COMPILER
Allow kore build to take compiler via KORE_COMPILER

sinemetu1/kore,jorisvink/kore,korusdipl/kore,zhcy/kore,hhua/kore,bonifaido/kore,jorisvink/kore,fourdollars/kore,bonifaido/kore,hhua/kore,bonifaido/kore,hhua/kore