Add Github CI check

[hanyunx]

Add github workflow for CI check replacing CircleCI. There are three parts in the workflow:

1. CI Test: Run all tests in crates/ and generate test coverage report
2. Check and Lint: Run cargo check/fmt/clippy for lint check
3. Contract and Cross Platform:
   a. run all tests for smart contracts in solidity ✅
   b. build crates/threshold-bls-ffi/cross on both macOS and Android environment ❌
   c. build wasm in crates/threshold-bls-ffi ✅

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (straka/arkworks_minus_cli@10a9ec8). Click here to learn what that means.
The diff coverage is n/a.

@@                     Coverage Diff                      @@
##             straka/arkworks_minus_cli      #96   +/-   ##
============================================================
  Coverage                             ?   65.11%           
============================================================
  Files                                ?       20           
  Lines                                ?     1608           
  Branches                             ?        0           
============================================================
  Hits                                 ?     1047           
  Misses                               ?      561           
  Partials                             ?        0           

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[hanyunx]

In .github/workflow/contracts-and-cross.yaml, the scripts of testing smart contracts and building iOS & Android are commented for now because of failing to build.