Add .gitignore for adk-go (#230)

* Add .gitignore for adk-go

* Remove vendor

* Draw a line for the function of the gitignore

* Remove lines

* Remove empty line from .gitignore

---------

Co-authored-by: Dmitry Pasiukevich <dpasiukevich@google.com>

.gitignore

@@ -0,0 +1,22 @@
+# .gitignore is restricted to the artifacts produced by go build and test.
+# for personal setup you can use personal .gitignore: `git config --global core.excludesfile ~/.gitignore`
+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Code coverage profiles and other test artifacts
+*.out
+coverage.*
+*.coverprofile
+profile.cov
+
+# Go workspace file
+go.work
+go.work.sum