Make compatible with OCM three.js and other libraries under that workflow

[elocremarc]

Get OPM to work with OCM three.js and p5.js libraries that were inscribed on HTML files. Roll in the same compression as well.
https://github.com/metagood/OCM-Dimensions

[dbottme]

Hey! Opened a PR for this: #28

Adds OCM Dimensions Three.js and p5.js as packages with dedicated templates that handle the recursive fetch+extract pattern (OCM libs are embedded as lines within an HTML inscription rather than standalone JS files).

What's included:

• OCMDimensions and p5js added to package.opm.json
• templates/threejs/ — Three.js template with OCM loader + build script
• templates/p5js/ — p5.js template with OCM loader + build script
• generate:threejs and generate:p5js npm scripts
• README docs explaining the OCM workflow

Quick start:

bun run opm              # download + inscribe packages to regtest
bun run generate:threejs # build + inscribe a Three.js artwork
sh server.sh             # view it

For more on the OCM Dimensions tooling and compression workflow, see https://github.com/metagood/OCM-Dimensions