[Makefile] add pcre lib to jsbsim, cleanup shell commands
[nav] GetPosX and GetPosY in nav.h (FW) are in local coordinates

allows to use the macro with sectors detection

fix #602
[stm32][i2c] enable correct error interrupts
[release] v5.0.4 stable version

- fix perl script compile_all_test_targets
- add pcre lib to jsbsim, cleanup shell commands
- fix InsideX for sectors (GetPosX and GetPosY in nav.h (FW) are in local coordinates)
  #[602]  (https://github.com/paparazzi/paparazzi/issues/602)
- stm32: enable correct error interrupts for i2c2 and i2c3
[messages] fix order in HFF_DBG