GeoModelKernel: Compile GeoAlignableTransform.cxx with optimization, even in debug builds.

GeoAlignableTransform::getTransform makes heavy use of Eigen, and is very slow in debug builds. Tweak the build so that this is compiled with optimization, with full inlining, even in debug builds.

This speeds up the RecJobTransforms unit test by 15% (from 900s to 750s).