Add code formatting and linting configurations***

Author: andresayac

Diff for: .editorconfig

@@ -0,0 +1,9 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true

Diff for: .eslintrc.json

@@ -0,0 +1,23 @@
+{
+    "env": {
+        "node": true
+    },
+    "extends": ["xo", "prettier"],
+    "parserOptions": {
+        "ecmaVersion": 2020,
+        "sourceType": "module"
+    },
+    "rules": {
+        "prettier/prettier": "error",
+        "one-var": "off",
+        "max-params": ["error", 5],
+        "arrow-body-style": ["error", "always"],
+        "radix": "off",
+        "no-unused-expressions": ["error", { "allowTernary": true }],
+        "curly": "error",
+        "new-cap": "off",
+        "no-return-assign": "off",
+        "no-await-in-loop": "off"
+    },
+    "plugins": ["prettier"]
+}

Diff for: .prettierignore

@@ -0,0 +1 @@
+bot_sessions/

Diff for: .prettierrc

@@ -0,0 +1,16 @@
+{
+    "printWidth": 120,
+    "tabWidth": 4,
+    "useTabs": false,
+    "endOfLine": "lf",
+    "semi": false,
+    "singleQuote": true,
+    "overrides": [
+        {
+            "files": "*.json",
+            "options": {
+                "tabWidth": 2
+            }
+        }
+    ]
+}