Update dependencies (NMFR#133)

Update nvm node version
Add .editorconfig
Update dev dependencies
Remove some dependencies vulnerabilities (`npm audit fix`)

Author: NMFR

.editorconfig

@@ -0,0 +1,16 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[Makefile]
+indent_style = tab
+
+[*.md]
+indent_size = 4
+trim_trailing_whitespace = false

.nvmrc

@@ -1 +1 @@
-v8.9.4
+v14.9.0