have license texts not stripped by builders/packers/transpilers

[jkowalleck]

in the JavaScript/node ecosystem, it is common to pack/transpile/transform source code for a target system.
babel, webpack, esbuild, ... these tools are usually used for the tasks.

tools minify code by stripping comments.
a license-text-comment should not be stripped, but it should be kept.
therefore these tools do not touch block-comments that start with /*!. some tools replace these comments with a text that states in which file the original text can still be found. yet they respect the ! and keep the texts.

task: make all license-text comments be block-comments starting with an enforcer-mark !