Enforce Absolute Elf paths in database

[lorenzo-gomez-windhover]

Guaranteed absolute elf paths will avoid vagueness in configuration such as is it "../airliner/build/tutorial/cfs/target/target/exe/airliner" or "/home/lgomez/airliner/build/tutorial/cfs/target/target/apps/sch/../../exe/cf/apps/SCH.so" in different configuration files when using the auto-yamcs toolchain or any other tool that may extract information from the database. Do note that this change will imply updating all of the auto-yamcs tools to ensure that all of them convert any relative elf paths in configuration files to absolute paths.

[lorenzo-gomez-windhover]

Has been resolved in 1391b302f247c5e6c99f49f905179d36267f15e3 and 98dc44bf5ad65811ea8dd5a652ce4acc05022f2f