Change go dep to go mod

Merge pull request #359 from CovenantSQL/feature/adapter

CQL-Proxy And CQL-ETH-Bridge

Fix sqlchain head block timestamp inaccurate bug (#355)

Merge pull request #334 from CovenantSQL/bugfix/log

Fix incorrect log condition

Remove bin/cql-utils in release pkg

Merge pull request #264 from CovenantSQL/feature/promote_beta

Promote beta branch

Merge remote-tracking branch 'origin/develop' into beta

Merge pull request #193 from CovenantSQL/bugfix/GNTEconfig

Update GNTE config

Merge pull request #171 from CovenantSQL/bugfix/testConfig

Change test config IsTestMode to true.

Fix smux link in README