For whatever reason most of the files had their permission
changed from 644 to 755, which is not wanted.

Add a parameter to load_configmodule API to allow an exec to specify that it may be run with only  command line options

LOG_F replaced by LOG_DUMPMSG. Add a generic function to dump a buffer or message. Go on with LOG_M implementation improvement. Remove redundant options to enable/disable logs.

remove compilation warnings, especially when disabling T_TRACER. enhance LOG_M macro implementation, introduce LOG_DEBUG_XXX macro to replace #ifdef DEBUG_XXX

log.c simplification, fix usefull functionality which never worked, move all log code from openair2 to common

- fix compilation of dlsim/ulsim/oaisim by defining some needed
  global variables
- fix compilation of oaisim: compile coding and params_libconfig
- fix running of if4p5 with low CPU count (oaisim was not working
  on the machine 'haswell' because of this)

- remove spaces at the end of lines
- remove useless dead code
  use: git show -p <this commit> -w
  to see it clearly

There is now the function copy_harq_proc_struct and some
procedures for the UE have changed, which makes necessary
to have UE->dlsch valid for both subframes (odd and even).

We increase memory usage, maybe it's not the correct solution.
To be kept in mind if something goes wrong at some point.