Install libraries in root build path instead on project build path

There is no difference between CMAKE_BINARY_DIR and PROJECT_BINARY_DIR on single builds. However, on super builds PROJECT_BINARY_DIR puts the libraries on each project sub-directories whereas CMAKE_BINARY_DIR puts libraries in the root build directory. I think we want the second one in super builds. This is even requested as a feature in #228

added buildsystem label

requested review from @gruenich

assigned to @santiago.ospina

added 31 commits

• e21a3ed5...7f1ccd13 - 30 commits from branch master
• 1d77eac5 - Install libraries in root build path instead on project build path

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requested review from @simon.praetorius and removed review request for @gruenich

changed the description

1. On a quick scan, I could not find a reference in #228. Nevertheless, I see the connection.
2. I think this was done by design to have the libraries in sub directories. This would make sense for 3rd party dependencies. If everything should be put into the super-build build directory, your change is correct.

approved this merge request

requested review from @gruenich and removed review request for @simon.praetorius

added 69 commits

• 1d77eac5...76cc3192 - 68 commits from branch master
• b4e1bf5c - Install libraries in root build path instead on project build path

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resolved all threads

enabled an automatic merge when all merge checks for b4e1bf5c pass

merged

mentioned in commit 8b31a737

mentioned in issue #228