Split Conda package into runtime and development package

[kordejong]

The current Conda package contains runtime targets. Conda packages or other users that want to use LUE's CMake targets need access to the header files and static libraries. For this we need to provide a separate development package. For this, the current Conda package's recipe.yml may need to contain a split. I have seen that in HDF5's recipe. The GDAL recipe, or Boost recipe may contain additional inspiration.

The current CMake scripts already support this scenario. There are separate install component defined for installing runtime component (--component lue_runtime which is the default install component) and installing development components (--component lue_development).