Melanie Cappelaere authored May 18, 2018 and Brad King committed May 18, 2018

Similar to ECLIPSE_EXTRA_NATURES which can be used to add a third party
nature to the .project, this property offers the possibility to inject
third party contents into the .cproject.

An example of where this is useful is MCUXpresso. This is an IDE based
on Eclipse. Compiling through CMake generated Eclipse projects works
fine by using a custom toolchain. However, in order to be able to debug
using such a project, an extra storageModule specific to the target
board is needed in the cproject.