Feature/ci check

[hurtki]

Changes

CI static check using github actions workflow

Includes:

• formatting check ( using gofmt )
  use gofmt -s -w . locally to format
• go tests check for every ms
  use sh run_tests.sh locally to check tests and coverage ( coverage not required in CI )
• spelling check ( using misspel )
  to install misspell use go install github.com/client9/misspell/cmd/misspell@latest
  to fix all issues: misspell -source=auto -w .