feat(lib): add migration script

migration/run.js

@@ -0,0 +1,22 @@
+const hasUntilDestroy = /import\s*{\s*[^}]*untilDestroyed[^}]*}\s*from\s*("|')ngx-take-until-destroy\1(?=[^]*untilDestroyed\(\w*\)[^]*)/;
+const catchImport = /import\s*{\s*[^}]*untilDestroyed[^}]*}\s*from\s*("|')ngx-take-until-destroy['|"];/;
+
+const glob = require('glob');
+const fs = require('fs');
+
+const base = `src/app`;
+
+glob(`${base}/**/*.ts`, {}, function (er, files) {
+  files.forEach((path) => {
+    fs.readFile(path, 'utf8', function (err, text) {
+      if (hasUntilDestroy.test(text)) {
+        console.log(`Replaced ${path}`);
+        const result = text.replace(/((?:@\w*\([^]*\)[\n\s\r\t]*)(?=([\n\s\r\t]*export[\s\r\t]*class))\2)/, '@UntilDestroy()\n$1')
+          .replace(catchImport, `import { untilDestroyed, UntilDestroy } from '@ngneat/until-destroy';`);
+        fs.writeFile(path, result, 'utf8', function (err) {
+          if (err) return console.log(err);
+        });
+      }
+    });
+  });
+});