Feature/dkg rerun (#2839)

* Reset contract state when dkg needs rerun

* Reset nym-api for rerun

* Gateway updates signer APIs at runtime

* Fix clippy

* Add epoch id

* Use IndexedMap for shares

* Query with epoch id

* Add Clone to client traits

* Pass nyxd client instead of api data

* Get the specific epoch vk

* Make wasm work

* Remove wasm test runs

As there are no wasm tests and the target_arch macros are not compatible
with the cargo test environment, we can safely remove (for now) the wasm
test target runs.

* Put epoch_id in storage pk

* Gateway uses old keys but current verifiers

* Add group contract to env

* Move group msg in common

* Only run DKG if part of group

* Clippy test

* Rename wasm_storage to wasm_mockups

* Update changelog

.github/workflows/wasm_client_build.yml

@@ -29,11 +29,6 @@ jobs:
           command: build
           args: --manifest-path clients/webassembly/Cargo.toml --target wasm32-unknown-unknown --features=coconut
 
-      - uses: actions-rs/cargo@v1
-        with:
-          command: test
-          args: --manifest-path clients/webassembly/Cargo.toml
-
       - uses: actions-rs/cargo@v1
         with:
           command: fmt