CompatHelper: add new compat entry for DelimitedFiles at version 1, (… #70

Job	Run time
Documentation	1m 31s
Julia 1 - ubuntu-latest - x64	1m 6s
Julia 1 - windows-latest - x64	1m 38s
Julia 1.0 - macOS-latest - x64	3m 9s
Julia 1.0 - windows-latest - x64	7m 22s
Julia nightly - ubuntu-latest - x64	1m 18s
Julia 1.0 - ubuntu-latest - x64	1m 18s
Julia 1 - macOS-latest - x64	1m 52s
Julia nightly - windows-latest - x64	1m 51s
Julia nightly - macOS-latest - x64	2m 3s
	23m 8s

Provide feedback