Remove workarounds for output directory bug in flatc compiler

[jarkenau]

As google/flatbuffers#7397 is resolved, we can remove our workarounds.
This involves updating the calls to the flatc compiler in Cmake and the setup.py :

seerep/setup.py

Lines 77 to 103 in 021b88b

	def from_fb(self) -> None:
	"""
	Currently the flatc compiler has a bug when using --python and --grpc, which prevents the use of -I and -o
	for specifying input and output directories https://github.com/google/flatbuffers/issues/7397.
	The current workaround is to copy the fbs files to the output directory, then run the flatc compiler in the
	output dir and remove the .fbs files afterwards.
	"""
	shutil.copytree(self.fbs_msgs_path, self.bdist_dir, dirs_exist_ok=True)
	shutil.copytree(self.fbs_interface_path, self.bdist_dir, dirs_exist_ok=True)
	fbs_files = glob(f"{self.bdist_dir}/*.fbs")
	flatc_call = [
	"flatc",
	"--python",
	"--grpc",
	# The compiler ONLY accepts filenames, no paths!
	*[os.path.basename(file) for file in fbs_files],
	]
	if call(flatc_call, cwd=self.bdist_dir) != 0:
	raise Exception("flatc call failed")
	# Remove the .fbs files
	for file in fbs_files:
	with suppress(Exception):
	os.remove(file)

seerep/seerep_com/CMakeLists.txt

Lines 50 to 66 in 021b88b

	set(FBS_INCLUDE_DIR ${SeerepMsgs_FLATBUFFERS_IMPORT_DIRS}
	${SeerepMsgs_FLATBUFFERS_IMPORT_DIRS}/fbs/seerep/fb
	)
	foreach(FILENAME IN LISTS MY_FBS_FILES)
	configure_file(
	"${FILENAME}" "${CMAKE_CURRENT_BINARY_DIR}/${FILENAME}" COPYONLY
	)
	endforeach()
	add_custom_target(fbpyschemas)
	add_custom_command(
	TARGET fbpyschemas
	COMMAND flatc -p -T --grpc "*.fbs" DEPENDS fbpyschemas
	WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/fbs/"
	)

seerep/seerep_msgs/CMakeLists.txt

Lines 162 to 176 in 021b88b

	build_flatbuffers(
	"${MY_FBS_FILES}"
	""
	fbschemas
	""
	"${CMAKE_CURRENT_BINARY_DIR}/fbs"
	"${CMAKE_CURRENT_BINARY_DIR}/fbs"
	""
	)
	add_library(FlatBuffersTarget INTERFACE)
	target_include_directories(
	FlatBuffersTarget INTERFACE ${FLATBUFFERS_INCLUDE_DIR}
	)
	add_dependencies(FlatBuffersTarget fbschemas)