Add goreleaser support (#15)

* Init goreleaser

* Remove unnecessary instructions

* Add build info

* Remove build id due to CI conflict

Author: Jon Roethke

.gitignore

@@ -41,4 +41,5 @@ centrifuge-chain/
 /cfgBuilder/*.toml
 /lvldbdata
 /client_configs
-chainbridge-core-example
+chainbridge-core-example
+dist/

.goreleaser.yml

@@ -0,0 +1,28 @@
+# documentation at http://goreleaser.com
+before:
+  hooks:
+    - go mod tidy
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+archives:
+  - replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      386: i386
+      amd64: x86_64
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: "{{ incpatch .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'