fix(go): Added linters/linter config.

templates/go/.golangci.yml

@@ -0,0 +1,22 @@
+version: "2"
+linters:
+  default: standard
+  enable:
+    - bidichk
+    - contextcheck
+    - decorder
+    - exhaustive
+    - fatcontext
+    - gosec
+    - govet
+    - intrange
+    - maintidx
+    - modernize
+    - noctx
+    - prealloc
+    - recvcheck
+    - sloglint
+    - usestdlibvars
+formatters:
+  enable:
+    - goimports