style: added eslint configuration

Author: bddvlpr

.eslintrc.json

@@ -0,0 +1,45 @@
+{
+  "root": true,
+  "ignorePatterns": ["projects/**/*"],
+  "overrides": [
+    {
+      "files": ["*.ts"],
+      "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended",
+        "plugin:@angular-eslint/recommended",
+        "plugin:@angular-eslint/template/process-inline-templates",
+        "prettier"
+      ],
+      "rules": {
+        "@typescript-eslint/ban-types": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "prefer-const": "off",
+        "@angular-eslint/directive-selector": [
+          "error",
+          {
+            "type": "attribute",
+            "prefix": "lib",
+            "style": "camelCase"
+          }
+        ],
+        "@angular-eslint/component-selector": [
+          "error",
+          {
+            "type": "element",
+            "prefix": "lib",
+            "style": "kebab-case"
+          }
+        ]
+      }
+    },
+    {
+      "files": ["*.html"],
+      "extends": [
+        "plugin:@angular-eslint/template/recommended",
+        "plugin:@angular-eslint/template/accessibility"
+      ],
+      "rules": {}
+    }
+  ]
+}

angular.json

@@ -28,13 +28,22 @@
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
             "tsConfig": "projects/openapi-fetch-angular/tsconfig.spec.json",
-            "polyfills": [
-              "zone.js",
-              "zone.js/testing"
+            "polyfills": ["zone.js", "zone.js/testing"]
+          }
+        },
+        "lint": {
+          "builder": "@angular-eslint/builder:lint",
+          "options": {
+            "lintFilePatterns": [
+              "projects/openapi-fetch-angular/**/*.ts",
+              "projects/openapi-fetch-angular/**/*.html"
             ]
           }
         }
       }
     }
+  },
+  "cli": {
+    "schematicCollections": ["@angular-eslint/schematics"]
   }
 }