Build OpenFX libs and examples #570

Job	Run time
Linux Ubuntu <config=Release>	1m 59s
Linux CentOS 7 VFX CY2022 <config=Release>	3m 7s
MacOS <config=Release>	1m 49s
Linux Rocky 8 VFX CY2023 No OpenGL <config=Release>	4m 7s
Linux Rocky 8 VFX CY2023 <config=Release>	4m 0s
Windows <config=Release>	3m 59s
Windows no CUDA <config=Release>	3m 7s
Linux CentOS 7 VFX CY2021 <config=Release>	2m 42s
Linux CentOS 7 VFX CY2021 <config=Release>	3m 14s
Linux Rocky 8 VFX CY2023 No OpenGL <config=Release>	4m 7s
Linux CentOS 7 VFX CY2022 <config=Release>	2m 57s
MacOS <config=Release>	1m 49s
Linux Ubuntu <config=Release>	1m 59s
Windows <config=Release>	3m 59s
Windows no CUDA <config=Release>	3m 7s
Linux Rocky 8 VFX CY2023 <config=Release>	4m 0s
	50m 2s

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