[feature] Implement simple RM for containers
This patch refactor the resource management and hwloc code into a working, albeit very simple scheduling policy. Indeed, the previous code contained strong assumptions about the output of hwloc matching an Argo NodeOS configuration used during the previous phase of the project, that always contained enough CPUs and Mems to perform exclusive scheduling. The current version is simpler, but should work on more regular systems. The patch also improves code organization so that introducing more complex scheduling algorithms will be simpler. The testing of this code resulted in the discovery of simple bugs in the daemon children handling code, which should work now.
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