modularize lams.js

[pkra]

Split out and build for production.

• [x] helpers
• [x] metadata
• [x] preamble
• [x] abstract
• [x] statements
• [x] figures
• [x] names
• [x] blames
• [x] refs
• [x] bibitems / citations
• [x] (foot)notes
• [x] bibliography

[pkra]

This is next on my list and will be a version jump.

[pkra]

Half way there.