Fix for 2d grids [1720]
FlatField setMetadataMap: clone, cloneFloat, ...

cloneDouble, resample.

[1720]
setMetadataMap for FieldImpl.resample [1720]
Clean copy of GridRelativeHorizontalWind.java

[1720]
do setMetadataMap in GridRelativeHorizontalWind

[1720]
Clean copy of CachedFlatField

[1720]
Clean Copy of GeoGridFlatField.java

[1720]
setMetadataMap in GGFF.cloneMe and CFF.cloneMe

[1720]