Update tools, rtems, libbsd, net legacy and net services

Summary

rtems: Update tools, rtems, libbsd, net legacy and net services

• net-services:

  • Doc to MD

• rtems:

  • Python pretty printer section
  • X86_64 APCI support
  • move tree.h to internal
  • libdl sym fixes
  • updates to READMEs and other docs

• libbsd

  • Memory leak fixed
  • updates to READMEs

• net-legacy

  • updates to READMEs

• tools

  • updates to READMEs
  • fixes to syms
  • add pdoc documentation
  • add testing