"crs_geometry_file" to support previous configuration

[YifanC]

Perhaps we should revert the name of crs_geometry_files to crs_geometry_file, and allow single string entrance in addition to a list, so we can continue use same configuration for single module or so.

ndlar_flow/yamls/proto_nd_flow/resources/Geometry.yaml

Lines 6 to 8 in 719fb88

	crs_geometry_files: ['data/proto_nd_flow/multi_tile_layout-2.4.16.yaml',
	'data/proto_nd_flow/multi_tile_layout-2.5.16.yaml']
	crs_geometry_to_module: [0,0,1,0]

ndlar_flow/src/proto_nd_flow/resources/geometry.py

Lines 133 to 134 in 719fb88

	crs_geometry_files=self.crs_geometry_files,
	crs_geometry_to_module=self.crs_geometry_to_module,

[YifanC]

@diaza In case you will move to later develop for single module reflow, this might cause a hiccup. I aim to tackle this in a week or so, but you may get there before me.