proto: migrate x/evidence to hybridcodec

[tac0turtle]

this pr includes mint module as it is smaller

Signed-off-by: Marko Baricevic marbar3778@yahoo.com

Closes: #XXX

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[alexanderbez]

ACK 🎉

[fedekunze]

why was the evidence msg removed?

[tac0turtle]

needs to be lifted to the app level so you will find the messge here: https://github.com/cosmos/cosmos-sdk/blob/master/simapp/codec/codec.proto

since it is a oneof that can be extended we need the app to define it, the samething will be done for accounts and gov proposal msgs

[alexanderbez]

Read the ADR @fedekunze 😉