Add line ending enum to lib #122

Job	Run time
doc	20s
check-minimal	20s
check	14s
format	20s
test (stable, --no-default-features)	10s
test (stable, --no-default-features --features "test")	18s
test (stable, --no-default-features --features "termcolor")	18s
test (stable)	20s
test (stable, --all-features)	23s
test (beta, --no-default-features)	23s
test (beta, --no-default-features --features "test")	23s
test (beta, --no-default-features --features "termcolor")	22s
test (beta)	17s
test (beta, --all-features)	20s
test (nightly, --no-default-features)	22s
test (nightly, --no-default-features --features "test")	21s
test (nightly, --no-default-features --features "termcolor")	18s
test (nightly)	17s
test (nightly, --all-features)	17s
tarpaulin	6s
publish	0s
	6m 9s

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