SPKI: Display certs in a human readable format

[oncilla]

Add support for displaying issuer certificates and certificate chains
in a human readable format.

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This change is 

[lukedirtwalker]

Reviewed 4 of 4 files at r1.
Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @oncilla)

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go/tools/scion-pki/internal/v2/certs/util.go, line 60 at r1 (raw file):

		chain, _ := filepath.Match(toMatchString(pkicmn.CertNameFmt), name)
		switch {
		// Check iss first, because chain will match too.

How can this happen, shouldn't that be prevented by the file ending?

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go/tools/scion-pki/internal/v2/certs/util.go, line 74 at r1 (raw file):

"%v"

this doesn't appear in the format strings?

[oncilla]

Reviewable status: 3 of 4 files reviewed, 2 unresolved discussions (waiting on @lukedirtwalker)

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go/tools/scion-pki/internal/v2/certs/util.go, line 60 at r1 (raw file):

Previously, lukedirtwalker (Lukas Vogel) wrote…

How can this happen, shouldn't that be prevented by the file ending?

oh, the name used to be different.
fixed.

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go/tools/scion-pki/internal/v2/certs/util.go, line 74 at r1 (raw file):

Previously, lukedirtwalker (Lukas Vogel) wrote…

"%v"

this doesn't appear in the format strings?

Done.

[lukedirtwalker]

Reviewed 1 of 1 files at r2.
Reviewable status: complete! all files reviewed, all discussions resolved