Merge remote-tracking branch 'origin/make-all-targets-compile' into integration_2025_w40 (!3665)

Make all targets compile

This MR enables us to compile all targets, and does that in one CI test. This
closes #726. Now, this should work:

cd ~/openairinterface5g
mkdir build && cd build
cmake .. -GNinja && ninja

To achieve this, I did the following:
- some targets have been fixed (warnings, errors)
- some targets have been removed when they did not seem to serve a good purpose
  (e.g., an almost empty test)
- some targets have been commented (e.g., LTE simulators, some unitary tests)
  which we maybe want to revive in the future
- some targets built when just building with ninja, but not all. For instance,
  telnetsrv_enb would typically build, but it was missing a dependency. Doing
  cmake .. -GNinja && ninja telnetsrv_enb would show this (in develop)

To help with the last bullet point, there is a script compile_targets.sh that
can compile targets independently (and in parallel, to not wait for ages) to
show that targets compile properly compile-targets.patch.

In almost all cases, the problem is that a specific module uses the logging
module, which depends on T, which needs to dynamically create headers. The way
to do this is to have a dependency, and many targets use generate_T or {T_LIB}
({} intentional: T might be absent, so then it evaluates to nothing). However,
not all do this, and those that depend on T actually don't depend on T, but on
the logging module, which in turn depends on T. So in many places, a simple
dependency onto log_headers fixes this problem, and generate_T or {T_LIB}
simplifies the dependency (but not always). The commits should have more info.

Note that at least the targets in FlexRIC do not all compile, at least in the
configuration that we use in docker/Dockerfile.build.ubuntu. So for the latter,
we cannot build with a simple ninja, but FlexRIC seems to be the only one that
does not compile. Since FlexRIC is a separate repository, that needs to be
addressed in the corresponding repository.

nfapi/oai_integration/socket/CMakeLists.txt

@@ -8,7 +8,6 @@ target_include_directories(nfapi_socket_lib PRIVATE include/)
 
 target_compile_definitions(nfapi_socket_lib PUBLIC ENABLE_SOCKET)
 target_link_libraries(nfapi_socket_lib PRIVATE NFAPI_LIB NFAPI_USER_LIB)
-target_link_libraries(nfapi_socket_lib PRIVATE LOG)
-add_dependencies(nfapi_socket_lib generate_T)
+target_link_libraries(nfapi_socket_lib PRIVATE log_headers)
 target_link_libraries(nfapi_socket_lib PRIVATE asn1_lte_rrc_hdrs asn1_nr_rrc_hdrs)
 target_link_libraries(nfapi_socket_lib PRIVATE nr_fapi_p5 nr_fapi_p7)