Implement NPDM support

[roblabla]

Implement NPDM support.

Closes #4

[todo[bot]]

Optionally pass a (signed) ACID here.

https://github.com/MegatonHammer/linkle/blob/68e9fe573e1d672d7a4bd7dc4612cdc19692495b/src/format/npdm.rs#L180-L190

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This comment was generated by todo based on a TODO comment in 68e9fe573e1d672d7a4bd7dc4612cdc19692495b in #39. cc @MegatonHammer.

[todo[bot]]

Unqualified approval. Zefuk is this?

https://github.com/MegatonHammer/linkle/blob/68e9fe573e1d672d7a4bd7dc4612cdc19692495b/src/format/npdm.rs#L234-L244

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This comment was generated by todo based on a TODO comment in 68e9fe573e1d672d7a4bd7dc4612cdc19692495b in #39. cc @MegatonHammer.

[todo[bot]]

there's more optional stuff afterwards.

https://github.com/MegatonHammer/linkle/blob/68e9fe573e1d672d7a4bd7dc4612cdc19692495b/src/format/npdm.rs#L346-L356

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This comment was generated by todo based on a TODO comment in 68e9fe573e1d672d7a4bd7dc4612cdc19692495b in #39. cc @MegatonHammer.

[todo[bot]]

Pretty errors if the user messes up.

https://github.com/MegatonHammer/linkle/blob/fd7af29c2481514fdd7e3ea1e9fa37820658190f/src/format/npdm.rs#L18-L28

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This comment was generated by todo based on a TODO comment in fd7af29c2481514fdd7e3ea1e9fa37820658190f in #39. cc @MegatonHammer.

[todo[bot]]

there's more optional stuff afterwards.

https://github.com/MegatonHammer/linkle/blob/fd7af29c2481514fdd7e3ea1e9fa37820658190f/src/format/npdm.rs#L464-L474

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This comment was generated by todo based on a TODO comment in fd7af29c2481514fdd7e3ea1e9fa37820658190f in #39. cc @MegatonHammer.

[todo[bot]]

there's more optional stuff afterwards.

https://github.com/MegatonHammer/linkle/blob/9d0a9dc1161c1f7a07e2fa8db75742fb6d6002c0/src/format/npdm.rs#L464-L474

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This comment was generated by todo based on a TODO comment in 9d0a9dc1161c1f7a07e2fa8db75742fb6d6002c0 in #39. cc @MegatonHammer.

[roblabla]

Blocked on https://github.com/RustCrypto/RSA/pull/43

[marysaka]

Not blocked anymore, need a rebase