Add fixtures to default ignores (#1384)

Author: brynary

qlty-config/default.toml

@@ -5,8 +5,8 @@ exclude_patterns = [
   "*_min.*",
   "*-min.*",
   "*.min.*",
-  "**/*.d.ts",
   "**/.yarn/**",
+  "**/*.d.ts",
   "**/bower_components/**",
   "**/build/**",
   "**/cache/**",
@@ -16,6 +16,7 @@ exclude_patterns = [
   "**/dist/**",
   "**/extern/**",
   "**/external/**",
+  "**/fixtures/**",
   "**/generated/**",
   "**/Godeps/**",
   "**/gradlew/**",