Add package.json with handy npm scripts

[starcraft66]

Running the shell scripts in the scripts folder manually is an outdated and annoying way of doing things.

This PR adds support for handy npm run scripts that will allow ForgeHax developers to easily run the CI deployment scripts locally in a user friendly way. Another advantage of introduceing npm into the ForgeHax development workflow is that it will make ForgeHax use state of the art web technologies and thus render the entire project web scale.

With this PR, you can easily setup the MCP development workspace by running:

npm run setup-decompilation-workspace

To compile a release jar version of ForgeHax, run:

npm run compile-forgehax

[fr1kin]

👺

[x4e]

Maybe we can expand this into offering forgehax as a public npm package?