* Update sdk version, implement pending txs, fix nonce check
* Bump cached dependencies in circleCI
* bump circleci go version
* updated linter and fixed bugs relating to go version 1.13
* Fixed circleci config and fixed linting warnings
* Updated circleCI for go version 1.12 and split jobs for build/testing
* updated go version to 1.12.5 for circleCI
* Go mod tidy dependencies
* Updated linting tools and cleared up code lint smells
* Added workflow to run build and test jobs
* Moved linting command to build workflow
* Get dependencies before linting by default
* Added go module flag to linter and increased deadline to pull packages
