Add GoReleaser config

Author: the-maldridge

.gitignore

@@ -0,0 +1,2 @@
+dist/
+vendor/

.goreleaser.yml

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+# This is an example goreleaser.yaml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+before:
+  hooks:
+    - go mod vendor
+builds:
+  - id: okta
+    main: .
+    binary: okta.treeplugin
+    goos:
+      - darwin
+      - freebsd
+      - linux
+      - windows
+archives:
+- replacements:
+    darwin: Darwin
+    linux: Linux
+    windows: Windows
+    386: i386
+    amd64: x86_64
+  files:
+    - LICENSE
+    - README.md
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'
+release:
+  github:
+    owner: NetAuth
+    name: plugin-okta