BREAKING(build-lib): modified _setup.mk to match iob-uart; add iob_cache_setup.py file

[arturum1]

• Add iob_cache_setup.py file
• Do not call setup() function if module is imported by another.
• BREAKING: modified _setup.mk to match iob-uart
  • Modified hw_setup.mk and sw_setup.mk file to match ones from iob-uart.
  • This may break the build process for this component
  • I need to investigate more about the iob-uart build process to ensure it also works for the cache.
  • These changes allow for iob-soc/build-lib to create the build directory, but it currently does not run in simulation.
• Update LIB