Merge install prefixes though removable symlinks.

Installations should be done into separate directories in a root directory. In the example below, we install some_library to ~/atmos/some_library and make symlinks to it in /usr/local/.

atmos set atmos_root ~/atmos
atmos set dest_root /usr/local

mkdir some_library/build
cd some_library/build
cmake .. install --prefix ~/atmos/some_library
make && make install

sudo atmos link some_library

To undo the symlinks, you can run the following

sudo atmos unlink some_library