Make preparations for publishing packages on npmjs.com (#36)

packages/common/.npmignore

+node_modules
+.idea
+npm-debug.log
+package-lock.json

packages/common/package.json

@@ -3,7 +3,6 @@
   "version": "0.1.0",
   "module": "index.js",
   "license": "LGPL-2.1-or-later",
-  "private": true,
   "devDependencies": {
     "@rollup/plugin-commonjs": "^16.0.0",
     "@rollup/plugin-json": "^4.1.0",

packages/file-handling/.npmignore

+node_modules
+.idea
+npm-debug.log
+package-lock.json

packages/file-handling/package.json

 {
   "name": "@dbp-toolkit/file-handling",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "main": "src/index.js",
   "license": "LGPL-2.1-or-later",
-  "private": true,
   "devDependencies": {
     "@rollup/plugin-commonjs": "^16.0.0",
     "@rollup/plugin-json": "^4.0.2",