Updates to openfast_io to match current dev branch API #3349

Job	Run time
build-all-debug-single	3m 23s
build-all-debug	6m 42s
build-postlib-release	11m 21s
build-drivers-release	5m 19s
build-test-uadriver-debug	1m 52s
rtest-module-drivers	4m 45s
rtest-modules-debug	11m 5s
build-interfaces-release	5m 40s
build-openfast-release	5m 40s
build-fastfarm-release	12m 7s
rtest-interfaces	3m 28s
rtest-OF-simulink	11m 11s
rtest-openfast_io	6m 18s
rtest-OF-5MW_Land_AeroMap	1m 33s
rtest-OF	15m 9s
rtest-OF-5MW_Land_BD_DLL_WTurb	2m 2s
rtest-OF-5MW_OC3Mnpl_DLL_WTurb_WavesIrr	2m 2s
rtest-OF-5MW_OC3Trpd_DLL_WSt_WavesReg	5m 10s
rtest-OF-5MW_OC4Jckt_DLL_WTurb_WavesIrr_MGrowth	2m 23s
rtest-OF-5MW_OC4Semi_WSt_WavesWN	1m 44s
rtest-OF-linearization	4m 32s
rtest-FF	2m 20s
	2h 5m 46s

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