feat:add Mary protocol parameters support

[verbotenj]

era = Mary, slot = 39916796, block_no = 6236059, id = e72579ff89dc9ed325b723a33624b596c08141c7bd573ecfff56a1f7229e4d09
era = Alonzo, slot = 39916975, block_no = 6236060, id = 8959c0323b94cc670afe44222ab8b4e72cfcad3b5ab665f334bbe642dc6e9ef4

Closes #326

[agaffney]

Remove these cbor tags. They don't do anything when using cbor.StructAsArray. The keyasint and omitempty tags only work when dealing with a map (this is a list).

[agaffney]

The nonce value is bytes .size 32 according to the CDDL, so we should use [32]byte instead of any

[verbotenj]

When I set to [32]byte, it cannot unmarshal positive integer into Go struct field struct { StructAsArray cbor.StructAsArray; Type uint; Value [32]uint8 }.Value of type [32]uint8

[verbotenj]

Then I tried to use temp struct

		tmp := struct {
			cbor.StructAsArray
			Type  uint
			Value []byte
		}{}

And got
cbor: cannot unmarshal positive integer into Go struct field struct { StructAsArray cbor.StructAsArray; Type uint; Value []uint8 }.Value of type []uint8

[verbotenj]

I tried also

		tmp := struct {
			cbor.StructAsArray
			Type  uint
			Value []uint8
		}{}

I am not sure what does error want to tell me

[agaffney]

This doesn't actually fail. Your unmarshal function is checking the first value in the list (0 in this case), which is a supported value. Instead I'd use something like 8102 ([2]), which will cause an error.