Copy files from context into builder or output images (Dockerfile's COPY)

[denzp]

Dockerfile statements:

COPY hom* /mydir/ 
COPY hom?.txt /mydir/

Should have equivalent cargo-wharf metadata:

[package.metadata.wharf.builder]
copy = [
  { src = "hom*", dst = "/mydir/" },
  { src = "hom?.txt", dst = "/mydir/" }
]

[package.metadata.wharf.output]
copy = [
  { src = "hom*", dst = "/mydir/" },
  { src = "hom?.txt", dst = "/mydir/" }
]