Use EXPECT_NEAR in NiRFmxLTEDriverApiTest to mitigate intermittent te… #1410

Job	Run time
validate_imported_protos / Validate Imported Proto Files	21s
validate_python / Validate Python Code	1m 44s
cancel_builds / Cancel Build(s)	2s
create_client_artifacts / Windows Artifacts	2m 16s
create_client_artifacts / Linux Artifacts	23s
build_desktop / Windows Build	1h 45m 13s
build_desktop / Ubuntu Build	41m 51s
build_nilrt / NILRT Cross Compile with GCC 6.3.0	41m 2s
create_release	0s
run_ubuntu_system_tests / Run Tests	41s
run_win_system_tests / Run Tests	32m 53s
	3h 46m 26s

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