omniorb: 4.2.4 -> 4.3.0
* omniorb: 4.2.4 -> 4.3.0 (#159693)
* omniorb: use Python 3.x
shorten meta.description
move the rest to meta.longDescription
add LGPL-2.1+ to meta.licenses (used by libs)
enable parallel building
Co-authored-by: Renaud <c0bw3b@users.noreply.github.com>